Engine Components - Valves - Mont Motorsports

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.190in Head Dia. 5.325in O/A Length, 0.3720in Stem - 11538-8

MSRP: $395.52

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.190in Head Dia. 5.344in O/A Length, 0.3415in Stem - 10894-8

MSRP: $188.43

Now: $141.32

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.190in Head Dia. 5.344in O/A Length, 0.3415in Stem - 11822-8

MSRP: $395.52

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.190in Head Dia. 5.344in O/A Length, 0.3715in Stem - 11720-8

MSRP: $239.60

Now: $179.69

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.190in Head Dia. 5.610in O/A Length, 0.3415in Stem - 11896-8

MSRP: $395.52

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.218in O/A Length, 0.3715in Stem - 11526-8

MSRP: $239.60

Now: $179.69

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.244in O/A Length, 0.3110in Stem - 12802-8

MSRP: $395.52

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.244in O/A Length, 0.3415in Stem - 10874-8

MSRP: $188.43

Now: $141.32

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.244in O/A Length, 0.3715in Stem - 11722-8

MSRP: $239.60

Now: $179.69

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.325in O/A Length, 0.3720in Stem - 11524-8

MSRP: $395.52

Now: $296.64

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.344in O/A Length, 0.3110in Stem - 12850-8

MSRP: $395.52

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.344in O/A Length, 0.3110in Stem - 12850H-8

MSRP: $881.51

Now: $661.13

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.344in O/A Length, 0.3415in Stem - 10814-8

MSRP: $188.43

Now: $141.32

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.344in O/A Length, 0.3415in Stem - 11814-8

MSRP: $239.60

Now: $179.69

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.344in O/A Length, 0.3715in Stem - 11724-8

MSRP: $239.60

Now: $179.69

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.433in O/A Length, 0.3720in Stem - 11534-8

MSRP: $395.52

Now: $296.64

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.494in O/A Length, 0.3110in Stem - 12856-8

MSRP: $395.52

Now: $296.64

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.494in O/A Length, 0.3110in Stem - 12856H-8

MSRP: $881.51

Now: $661.13

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.494in O/A Length, 0.3415in Stem - 10868-8

MSRP: $188.43

Now: $141.32

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.494in O/A Length, 0.3415in Stem - 11856-8

MSRP: $382.30

Now: $286.72

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.494in O/A Length, 0.3415in Stem - 11868-8

MSRP: $239.60

Now: $179.69

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.594in O/A Length, 0.3110in Stem - 12898-8

MSRP: $395.52

Now: $296.64

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.610in O/A Length, 0.3415in Stem - 11898-8

MSRP: $395.52

Now: $296.64

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.244in O/A Length, 0.3110in Stem - 12780-8

MSRP: $395.52

Now: $296.64

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.244in O/A Length, 0.3415in Stem - 11730-8

MSRP: $239.60

Now: $179.69

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.244in O/A Length, 0.3415in Stem - 11780-8

MSRP: $395.52

Now: $296.64

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.344in O/A Length, 0.3110in Stem - 12842-8

MSRP: $395.52

Now: $296.64

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.344in O/A Length, 0.3415in Stem - 11816-8

MSRP: $239.60

Now: $179.69

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.344in O/A Length, 0.3715in Stem - 11728-8

MSRP: $239.60

Now: $179.69

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.433in O/A Length, 0.3720in Stem - 11536-8

MSRP: $395.52

Now: $296.64

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.444in O/A Length, 0.3110in Stem - 12784-8

MSRP: $395.52

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.513in O/A Length, 0.3720in Stem - 11570-8

MSRP: $395.52

Now: $296.64

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.594in O/A Length, 0.3110in Stem - 12878-8

MSRP: $395.52

Now: $296.64

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.325in Head Dia. 5.494in O/A Length, 0.3110in Stem - 12838-8

MSRP: $395.52

Now: $296.64

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.325in Head Dia. 5.509in O/A Length, 0.3415in Stem - 11838-8

MSRP: $395.52

Now: $296.64

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.325in Head Dia. 6.590in O/A Length, 0.3415in Stem - 11580-8

MSRP: $395.52

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.350in Head Dia. 5.594in O/A Length, 0.3110in Stem - 12880-8

MSRP: $395.52

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.400in Head Dia. 6.600in O/A Length, 0.3415in Stem - 11582-8

MSRP: $395.52

Now: $296.64

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Manley Performance

Manley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8) - 11530-8

MSRP: $395.52

Now: $296.64

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Manley Performance

Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-8

MSRP: $716.57

Now: $537.42

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Manley Performance

Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-8

MSRP: $716.57

Now: $537.42

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Manley Performance

Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-8

MSRP: $881.51

Now: $661.13

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Manley Performance

Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-8

MSRP: $716.57

Now: $537.42

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Manley Performance

Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-8

MSRP: $716.57

Now: $537.42

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Manley Performance

Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-8

MSRP: $716.57

Now: $537.42

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Manley Performance

Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-8

MSRP: $881.51

Now: $661.13

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Manley Performance

Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-8

MSRP: $716.57

Now: $537.42

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Manley Performance

Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8

MSRP: $382.30

Now: $286.72

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Manley Performance

Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-8

MSRP: $716.57

Now: $537.42

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Manley Performance

Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-8

MSRP: $881.51

Now: $661.13

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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

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Manley Performance

Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-8

MSRP: $881.51

Now: $661.13

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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.190in Head Dia. 5.325in O/A Length, 0.3720in Stem - 11538-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.190in Head Dia. 5.344in O/A Length, 0.3415in Stem - 10894-8

High-Quality Stainless Steel: Our Street Series valves, available as XH-424 for exhaust and NK-841 for intake, are crafted from top-grade stainless steel, ensuring durability and longevity.Chrome Stems and Hard Tips: These valves feature chrome stems and...

MSRP: $188.43

Now: $141.32
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.190in Head Dia. 5.344in O/A Length, 0.3415in Stem - 11822-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.190in Head Dia. 5.344in O/A Length, 0.3715in Stem - 11720-8

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 and hard tips are incorporated for enhanced longevity...

MSRP: $239.60

Now: $179.69
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.190in Head Dia. 5.610in O/A Length, 0.3415in Stem - 11896-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.218in O/A Length, 0.3715in Stem - 11526-8

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 and hard tips are incorporated for enhanced longevity...

MSRP: $239.60

Now: $179.69
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.244in O/A Length, 0.3110in Stem - 12802-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.244in O/A Length, 0.3415in Stem - 10874-8

High-Quality Stainless Steel: Our Street Series valves, available as XH-424 for exhaust and NK-841 for intake, are crafted from top-grade stainless steel, ensuring durability and longevity.Chrome Stems and Hard Tips: These valves feature chrome stems and...

MSRP: $188.43

Now: $141.32
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.244in O/A Length, 0.3715in Stem - 11722-8

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 and hard tips are incorporated for enhanced longevity...

MSRP: $239.60

Now: $179.69
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.325in O/A Length, 0.3720in Stem - 11524-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.344in O/A Length, 0.3110in Stem - 12850-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.344in O/A Length, 0.3110in Stem - 12850H-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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $881.51

Now: $661.13
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.344in O/A Length, 0.3415in Stem - 10814-8

High-Quality Stainless Steel: Our Street Series valves, available as XH-424 for exhaust and NK-841 for intake, are crafted from top-grade stainless steel, ensuring durability and longevity.Chrome Stems and Hard Tips: These valves feature chrome stems and...

MSRP: $188.43

Now: $141.32
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.344in O/A Length, 0.3415in Stem - 11814-8

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 and hard tips are incorporated for enhanced longevity...

MSRP: $239.60

Now: $179.69
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.344in O/A Length, 0.3715in Stem - 11724-8

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 and hard tips are incorporated for enhanced longevity...

MSRP: $239.60

Now: $179.69
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.433in O/A Length, 0.3720in Stem - 11534-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.494in O/A Length, 0.3110in Stem - 12856-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.494in O/A Length, 0.3110in Stem - 12856H-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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $881.51

Now: $661.13
CURRENTLY OUT OF STOCK Compare
Quick view

Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.494in O/A Length, 0.3415in Stem - 10868-8

High-Quality Stainless Steel: Our Street Series valves, available as XH-424 for exhaust and NK-841 for intake, are crafted from top-grade stainless steel, ensuring durability and longevity.Chrome Stems and Hard Tips: These valves feature chrome stems and...

MSRP: $188.43

Now: $141.32
CURRENTLY OUT OF STOCK Compare
Quick view

Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.494in O/A Length, 0.3415in Stem - 11856-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $382.30

Now: $286.72
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.494in O/A Length, 0.3415in Stem - 11868-8

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 and hard tips are incorporated for enhanced longevity...

MSRP: $239.60

Now: $179.69
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.594in O/A Length, 0.3110in Stem - 12898-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.610in O/A Length, 0.3415in Stem - 11898-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.244in O/A Length, 0.3110in Stem - 12780-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.244in O/A Length, 0.3415in Stem - 11730-8

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 and hard tips are incorporated for enhanced longevity...

MSRP: $239.60

Now: $179.69
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.244in O/A Length, 0.3415in Stem - 11780-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.344in O/A Length, 0.3110in Stem - 12842-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.344in O/A Length, 0.3415in Stem - 11816-8

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 and hard tips are incorporated for enhanced longevity...

MSRP: $239.60

Now: $179.69
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.344in O/A Length, 0.3715in Stem - 11728-8

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 and hard tips are incorporated for enhanced longevity...

MSRP: $239.60

Now: $179.69
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.433in O/A Length, 0.3720in Stem - 11536-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.444in O/A Length, 0.3110in Stem - 12784-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.513in O/A Length, 0.3720in Stem - 11570-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.594in O/A Length, 0.3110in Stem - 12878-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.325in Head Dia. 5.494in O/A Length, 0.3110in Stem - 12838-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.325in Head Dia. 5.509in O/A Length, 0.3415in Stem - 11838-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.325in Head Dia. 6.590in O/A Length, 0.3415in Stem - 11580-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.350in Head Dia. 5.594in O/A Length, 0.3110in Stem - 12880-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
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Manley Performance

Manley Chevrolet Big Block Intake Valve Kit - 2.400in Head Dia. 6.600in O/A Length, 0.3415in Stem - 11582-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
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Manley Performance

Manley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8) - 11530-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $395.52

Now: $296.64
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Manley Performance

Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-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 and hard tips are incorporated for enhanced longevity...

MSRP: $716.57

Now: $537.42
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Manley Performance

Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-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 and hard tips are incorporated for enhanced longevity...

MSRP: $716.57

Now: $537.42
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Manley Performance

Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $881.51

Now: $661.13
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Manley Performance

Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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 and hard tips are incorporated for enhanced longevity...

MSRP: $716.57

Now: $537.42
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Manley Performance

Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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 and hard tips are incorporated for enhanced longevity...

MSRP: $716.57

Now: $537.42
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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 and hard tips are incorporated for enhanced longevity...

MSRP: $716.57

Now: $537.42
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $881.51

Now: $661.13
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Manley Performance

Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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 and hard tips are incorporated for enhanced longevity...

MSRP: $716.57

Now: $537.42
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8

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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $382.30

Now: $286.72
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Manley Performance

Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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 and hard tips are incorporated for enhanced longevity...

MSRP: $716.57

Now: $537.42
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $881.51

Now: $661.13
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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 and hard tips are incorporated for enhanced longevity...

MSRP: $257.20

Now: $192.91
CURRENTLY OUT OF STOCK Compare
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Manley Performance

Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

MSRP: $881.51

Now: $661.13
CURRENTLY OUT OF STOCK Compare

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