Quick view Details Manley Performance Manley Chevrolet LS Lightweight 4340 Forged 3.2622in Stroke Pro Series Crankshaft w/58T Reluctor - 193958 MSRP: $1,294.05 Now: $1,190.53 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet LS 4340 Forged 4.000in Stroke Lightweight Crankshaft w/ 58 Tooth Reluctor Wheel - 192158 MSRP: $1,294.05 Now: $1,190.53 Add to Cart Compare Quick view Details Manley Performance Manley Chevrolet LS 6.125 Length H Tuff Series Connecting Rod Set w/ ARP 2000 Bolts - 15051R-8 MSRP: $1,070.66 Now: $963.59 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Small Block LS-1 6.125in H Beam w/ ARP 2000 Connecting Rod Set - 14051R-8 MSRP: $937.67 Now: $843.91 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS Lightweight 4340 Forged 3.2622in Stroke Pro Series Crankshaft w/58T Reluctor - 193958 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS 4340 Forged 4.000in Stroke Lightweight Crankshaft w/ 58 Tooth Reluctor Wheel - 192158 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 Add to Cart Compare Quick view Manley Performance Manley Chevrolet LS 6.125 Length H Tuff Series Connecting Rod Set w/ ARP 2000 Bolts - 15051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $1,070.66 Now: $963.59 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS-1 6.125in H Beam w/ ARP 2000 Connecting Rod Set - 14051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $937.67 Now: $843.91 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Compare Selected × OK
Quick view Details Manley Performance Manley Chevrolet LS 4340 Forged 4.000in Stroke Lightweight Crankshaft w/ 58 Tooth Reluctor Wheel - 192158 MSRP: $1,294.05 Now: $1,190.53 Add to Cart Compare Quick view Details Manley Performance Manley Chevrolet LS 6.125 Length H Tuff Series Connecting Rod Set w/ ARP 2000 Bolts - 15051R-8 MSRP: $1,070.66 Now: $963.59 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Small Block LS-1 6.125in H Beam w/ ARP 2000 Connecting Rod Set - 14051R-8 MSRP: $937.67 Now: $843.91 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS Lightweight 4340 Forged 3.2622in Stroke Pro Series Crankshaft w/58T Reluctor - 193958 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS 4340 Forged 4.000in Stroke Lightweight Crankshaft w/ 58 Tooth Reluctor Wheel - 192158 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 Add to Cart Compare Quick view Manley Performance Manley Chevrolet LS 6.125 Length H Tuff Series Connecting Rod Set w/ ARP 2000 Bolts - 15051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $1,070.66 Now: $963.59 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS-1 6.125in H Beam w/ ARP 2000 Connecting Rod Set - 14051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $937.67 Now: $843.91 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Compare Selected × OK
Quick view Details Manley Performance Manley Chevrolet LS 6.125 Length H Tuff Series Connecting Rod Set w/ ARP 2000 Bolts - 15051R-8 MSRP: $1,070.66 Now: $963.59 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Small Block LS-1 6.125in H Beam w/ ARP 2000 Connecting Rod Set - 14051R-8 MSRP: $937.67 Now: $843.91 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS Lightweight 4340 Forged 3.2622in Stroke Pro Series Crankshaft w/58T Reluctor - 193958 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS 4340 Forged 4.000in Stroke Lightweight Crankshaft w/ 58 Tooth Reluctor Wheel - 192158 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 Add to Cart Compare Quick view Manley Performance Manley Chevrolet LS 6.125 Length H Tuff Series Connecting Rod Set w/ ARP 2000 Bolts - 15051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $1,070.66 Now: $963.59 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS-1 6.125in H Beam w/ ARP 2000 Connecting Rod Set - 14051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $937.67 Now: $843.91 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Compare Selected × OK
Quick view Details Manley Performance Manley Chevy Small Block LS-1 6.125in H Beam w/ ARP 2000 Connecting Rod Set - 14051R-8 MSRP: $937.67 Now: $843.91 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS Lightweight 4340 Forged 3.2622in Stroke Pro Series Crankshaft w/58T Reluctor - 193958 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS 4340 Forged 4.000in Stroke Lightweight Crankshaft w/ 58 Tooth Reluctor Wheel - 192158 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 Add to Cart Compare Quick view Manley Performance Manley Chevrolet LS 6.125 Length H Tuff Series Connecting Rod Set w/ ARP 2000 Bolts - 15051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $1,070.66 Now: $963.59 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS-1 6.125in H Beam w/ ARP 2000 Connecting Rod Set - 14051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $937.67 Now: $843.91 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Compare Selected × OK
Quick view Details Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Details Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS Lightweight 4340 Forged 3.2622in Stroke Pro Series Crankshaft w/58T Reluctor - 193958 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS 4340 Forged 4.000in Stroke Lightweight Crankshaft w/ 58 Tooth Reluctor Wheel - 192158 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 Add to Cart Compare Quick view Manley Performance Manley Chevrolet LS 6.125 Length H Tuff Series Connecting Rod Set w/ ARP 2000 Bolts - 15051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $1,070.66 Now: $963.59 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS-1 6.125in H Beam w/ ARP 2000 Connecting Rod Set - 14051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $937.67 Now: $843.91 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Compare Selected × OK
Quick view Details Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS Lightweight 4340 Forged 3.2622in Stroke Pro Series Crankshaft w/58T Reluctor - 193958 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS 4340 Forged 4.000in Stroke Lightweight Crankshaft w/ 58 Tooth Reluctor Wheel - 192158 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 Add to Cart Compare Quick view Manley Performance Manley Chevrolet LS 6.125 Length H Tuff Series Connecting Rod Set w/ ARP 2000 Bolts - 15051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $1,070.66 Now: $963.59 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS-1 6.125in H Beam w/ ARP 2000 Connecting Rod Set - 14051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $937.67 Now: $843.91 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Compare Selected × OK
Quick view Details Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Details Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS Lightweight 4340 Forged 3.2622in Stroke Pro Series Crankshaft w/58T Reluctor - 193958 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS 4340 Forged 4.000in Stroke Lightweight Crankshaft w/ 58 Tooth Reluctor Wheel - 192158 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 Add to Cart Compare Quick view Manley Performance Manley Chevrolet LS 6.125 Length H Tuff Series Connecting Rod Set w/ ARP 2000 Bolts - 15051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $1,070.66 Now: $963.59 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS-1 6.125in H Beam w/ ARP 2000 Connecting Rod Set - 14051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $937.67 Now: $843.91 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Compare Selected × OK
Quick view Details Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS Lightweight 4340 Forged 3.2622in Stroke Pro Series Crankshaft w/58T Reluctor - 193958 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS 4340 Forged 4.000in Stroke Lightweight Crankshaft w/ 58 Tooth Reluctor Wheel - 192158 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 Add to Cart Compare Quick view Manley Performance Manley Chevrolet LS 6.125 Length H Tuff Series Connecting Rod Set w/ ARP 2000 Bolts - 15051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $1,070.66 Now: $963.59 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS-1 6.125in H Beam w/ ARP 2000 Connecting Rod Set - 14051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $937.67 Now: $843.91 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Compare Selected × OK
Quick view Manley Performance Manley Chevrolet LS Lightweight 4340 Forged 3.2622in Stroke Pro Series Crankshaft w/58T Reluctor - 193958 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS 4340 Forged 4.000in Stroke Lightweight Crankshaft w/ 58 Tooth Reluctor Wheel - 192158 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 Add to Cart Compare Quick view Manley Performance Manley Chevrolet LS 6.125 Length H Tuff Series Connecting Rod Set w/ ARP 2000 Bolts - 15051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $1,070.66 Now: $963.59 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS-1 6.125in H Beam w/ ARP 2000 Connecting Rod Set - 14051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $937.67 Now: $843.91 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Compare Selected × OK
Quick view Manley Performance Manley Chevrolet LS 4340 Forged 4.000in Stroke Lightweight Crankshaft w/ 58 Tooth Reluctor Wheel - 192158 Lightweight Design, 4340 Materials: Available in both 4340 non-twist forged and 4340 ?Turbo-Tuff Billet material, ensuring durability and performance. Gun drilled mains and lightened rod journals... MSRP: $1,294.05 Now: $1,190.53 Add to Cart Compare Quick view Manley Performance Manley Chevrolet LS 6.125 Length H Tuff Series Connecting Rod Set w/ ARP 2000 Bolts - 15051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $1,070.66 Now: $963.59 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS-1 6.125in H Beam w/ ARP 2000 Connecting Rod Set - 14051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $937.67 Now: $843.91 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Compare Selected × OK
Quick view Manley Performance Manley Chevrolet LS 6.125 Length H Tuff Series Connecting Rod Set w/ ARP 2000 Bolts - 15051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $1,070.66 Now: $963.59 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS-1 6.125in H Beam w/ ARP 2000 Connecting Rod Set - 14051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $937.67 Now: $843.91 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Compare Selected × OK
Quick view Manley Performance Manley Chevy Small Block LS-1 6.125in H Beam w/ ARP 2000 Connecting Rod Set - 14051R-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $937.67 Now: $843.91 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Compare Selected × OK
Quick view Manley Performance Manley Chevy Small Block LS Series 6.125in H Beam Connecting Rod Set - 14051-8 Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist,... MSRP: $826.98 Now: $744.28 Add to Cart Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Compare Selected × OK
Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. Severe Duty Exhaust Valves (Set of 8) - 12355-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat,... MSRP: $382.30 Now: $286.72 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Compare Selected × OK
Quick view Manley Performance Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Compare Selected
Quick view Manley Performance Manley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8) - 12350-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems... MSRP: $257.20 Now: $192.91 CURRENTLY OUT OF STOCK Compare Compare Selected