Valves

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  Manley Performance

  Manley Chevrolet Small Block Intake Valve Kit - 2.055in Head Dia. 4.911in O/A Length, 0.3415in Stem

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  £401.42

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  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, t...
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  Manley Performance

  Manley Chevrolet Big Block Exhaust Valve Kit - 1.880in Head Dia. 5.454in O/A Length, 0.3715in Stem

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  Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: ...
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  Manley Performance

  Manley Chrysler Top Fuel Exhaust Valve Kit - 1.950in Head Dia. 5.120in O/A Length, 0.3715in Stem

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  £657.72

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  Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: ...
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  Manley Performance

  Manley Chevrolet Small Block Exhaust Valve Kit - 1.625in Head Dia. 5.365in O/A Length, 0.3415in Stem

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  Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: ...
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  Manley Performance

  Manley Chevrolet Big Block Exhaust Valve Kit - 1.900in Head Dia. 5.522in O/A Length, 0.3715in Stem

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  £251.58

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  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...
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  Manley Performance

  Manley Chevrolet Small Block Exhaust Valve Kit - 1.625in Head Dia. 5.265in O/A Length, 0.3415in Stem

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  £685.44

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  Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: ...
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  Manley Performance

  Manley Chevrolet Small Block Exhaust Valve Kit - 1.625in Head Dia. 5.165in O/A Length, 0.3415in Stem

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  £685.44

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  £685.44

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  Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: ...
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  Manley Performance

  Manley Chevrolet Small Block Exhaust Valve Kit - 1.625in Head Dia. 5.065in O/A Length, 0.3415in Stem

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  £685.44

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  Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: ...
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  Manley Performance

  Manley Chevrolet Small Block Exhaust Valve Kit - 1.600in Head Dia. 5.365in O/A Length, 0.3415in Stem

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  £685.44

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  Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: ...
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  Manley Performance

  Manley Chrysler 340intake Valve Kit - 2.020in Head Dia. 5.240in O/A Length, 0.3415in Stem

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  £401.42

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  £401.42

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  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, t...
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  Manley Performance

  Manley Acura 1.6L B16A1 Exhaust Valve Kit - 28.50mm Head Dia. 102.70mm O/A Length, 0.2150in Stem

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  £264.61

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  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...
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  Manley Performance

  Manley Volkswagen 1.7L 40mm Dia 4.606in Length Race Series Exhaust Valve Kit

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  £125.79

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  £125.79

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  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...
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  Manley Performance

  Manley Volkswagen 1.7L Type IV Exhaust Valve Kit - 40.00mm Head Dia. 4.606in O/A Length, 0.3130in

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  £125.79

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  £125.79

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  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...
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  Manley Performance

  Manley Volkswagen 1.7L Type IV Exhaust Valve Kit - 38.00mm Head Dia. 4.606in O/A Length, 0.3130in

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  £125.79

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  £125.79

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  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...
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  Manley Performance

  Manley Volkswagen Rabbit Exhaust Valve Kit - 34.00mm Head Dia. 3.976in O/A Length, 0.3130in Stem

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  £125.79

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  £125.79

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  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...
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  Manley Performance

  Manley Volkswagen 1.2L Type I Exhaust Valve Kit 37.50mm Head Dia. 4.405in O/A Length, 0.3130in Stem

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  £125.79

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  £125.79

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  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...
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  Manley Performance

  Manley Volkswagen 1.2L Type I Intake Valve Kit - 42.00mm Head Dia. 4.405in O/A Length, 0.3130in Stem

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  £125.79

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  £125.79

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  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...
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  Manley Performance

  Manley Volkswagen 1.2L Type I Exhaust Valve Kit 33.00mm Head Dia. 4.405in O/A Length, 0.3130in Stem

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  £125.79

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  £125.79

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  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...
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  Manley Performance

  Manley Volkswagen 1.2L Type I Exhaust Valve Kit 32.00mm Head Dia. 4.405in O/A Length, 0.3130in Stem

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  £125.79

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  £125.79

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  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...
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  Manley Performance

  Manley Dodge 8.0L Viper V10 Exhaust Valve Kit - 1.600in Head Dia. 5.97mm O/A Length, 0.3110in Stem

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  £330.77

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  £330.77

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  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...
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  Manley Performance

  Manley Ford 4.6L Modular V8 Exhaust Valve Kit - 36.00mm Head Dia. 4.650in O/A Length, 0.2740in Stem

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  Regular price

  £270.06

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  £270.06

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  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...
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  Manley Performance

  Manley Ford 4.6L Modular V8 intake Valve Kit - 44.50mm Head Dia. 4.705in O/A Length, 0.2750in Stem

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  £270.06

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  £270.06

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  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...
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  Manley Performance

  Manley Ford 4.6L Modular V8 Exhaust Valve Kit - 34.00mm Head Dia. 4.650in O/A Length, 0.2740in Stem

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  Regular price

  £270.06

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  £270.06

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  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...
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  Manley Performance

  Manley Ford 4.6L Modular V8 Exhaust Valve Kit - 38.50mm Head Dia. 4.585in O/A Length, 0.2345in Stem

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  Regular price

  £685.44

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  £685.44

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  Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: ...