Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11760-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11766-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12322-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.180in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12324-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8 MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevrolet Small Block Severe Duty Exhaust Valves 1.500in Head Dia .3415in Stem - Set of 8 - 11747-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy Big Block .100 Longer 11/32in Stem Dia Extreme Duty & Marine Intake Valves (Set of 8) - 11842-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy Big Block .250 Longer 11/32in Stem Dia Severe Duty Intake Valves (Set of 8) - 11854-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish Race Master Intake Valves (Set of 8) - 11894-8 MSRP: $251.58 Now: $188.69 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy Big Block 5.6 OA Length Severe Duty Series Intake Valves - Set of 8 - 12340-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves - 12843-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8) - 11562-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy Big Block Street Flo Intake Valves 2.250in Head Dia - 10726-8 MSRP: Now: $197.85 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy L-99 Severe Duty Series 2.165in Head Diameter Intake Valve (Single) - 12354H-1 MSRP: $115.69 Now: $86.77 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8 MSRP: $685.44 Now: $514.08 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1 MSRP: $50.18 Now: $37.64 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1 MSRP: $51.91 Now: $38.93 Add to Cart Compare Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8 MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11680-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy LS-1, LS-2 Small Block 1.550 Pro Flo Severe Duty Exhaust Valves (Set of 8) - 11673-8 MSRP: $401.42 Now: $301.07 Add to Cart Compare Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8 MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Details Manley Performance Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8 MSRP: $925.59 Now: $694.19 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11584-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11862-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.211in O/A Length, 0.3415in Stem - 11746-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11332-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11594-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11750-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $401.42 Now: $301.07 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11334-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11336-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11510-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.100in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11770-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12318-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.026in O/A Length, 0.3415in Stem - 11848-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11340-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.040in O/A Length, 0.3415in Stem - 11774-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12320-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $270.06 Now: $202.55 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.125in O/A Length, 0.3415in Stem - 11866-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11342-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11776-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11344-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11754-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.240in O/A Length, 0.3415in Stem - 11778-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11346-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11756-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11348-8 Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM MSRP: $251.58 Now: $188.69 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.440in O/A Length, 0.3415in Stem - 11508-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.540in O/A Length, 0.3415in Stem - 11768-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),... MSRP: $415.30 Now: $311.48 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
Quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.150in Head Dia. 5.340in O/A Length, 0.3415in Stem - 11758-8 Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake),...
