Manley Race Series Gen II Custom Valves

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Do you have a boosted, high-heat, high-horsepower engine? Manley offers custom race valves for your high performance engine. These Race Series Gen II custom valves are manufactured from XH-426 (exhaust) and NK-842 (intake) materials with hard tips and hardened grooves. They are tailored to length, groove position, head diameter, margin, and other specifications that you request when ordering. So, whether you're building an engine or are a serious racer, Manley is committed to seeing that you're there at the finish.

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Results 1 - 13 of 13

Manley Race Series Gen II Custom Valves 11201-1

Valve, Exhaust, Stainless Steel, 1.940 in. Diameter, .342 in. Stem, 6.417 in. Length, Universal, Each

Part Number: MAN-11201-1

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Manley Race Series Gen II Custom Valves 11201-8

Valves, Exhaust, Stainless Steel, 1.940 in. Diameter, .342 in. Stem, 6.417 in. Length, Universal, Set of 8

Part Number: MAN-11201-8

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Manley Race Series Gen II Custom Valves 11257-8

Valves, Exhaust, Stainless Steel, 1.750 in. Diameter, .306 in. Stem, 5.400 in. Length, Universal, Set of 8

Part Number: MAN-11257-8

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Manley Race Series Gen II Custom Valves 11276-4

Valve, Intake, Stainless Steel, 1.575 in. Diameter, 0.235 in. Stem, 4.449 in. Length, Each

Part Number: MAN-11276-4

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Manley Race Series Gen II Custom Valves 11208-1

Valve, Intake, Stainless Steel, 1.467 in. Diameter, .217 in. Stem, 4.685 in. Length, Universal, Each

Part Number: MAN-11208-1

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Manley Race Series Gen II Custom Valves 11208-8

Valves, Intake, Stainless Steel, 1.467 in. Diameter, .217 in. Stem, 4.685 in. Length, Universal, Set of 8

Part Number: MAN-11208-8

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Manley Race Series Gen II Custom Valves 11245-1

Valve, Exhaust, Stainless Steel, 1.625 in. Diameter, .342 in. Stem, 5.640 in. Length, Each

Part Number: MAN-11245-1

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Manley Race Series Gen II Custom Valves 11247-8

Valves, Exhaust, Stainless Steel, 1.457 in. Diameter, .274 in. Stem, 4.800 in. Length, Set of 8

Part Number: MAN-11247-8

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Manley Race Series Gen II Custom Valves 11249-1

Valves, Exhaust, Stainless Steel, 2.100 in. Diameter, .310 in. Stem, 5.400 in. Length, Set of 8

Part Number: MAN-11249-1

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Manley Race Series Gen II Custom Valves 11249-8

Valves, Exhaust, Stainless Steel, 2.100 in. Diameter, .310 in. Stem, 5.400 in. Length, Set of 8

Part Number: MAN-11249-8

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Manley Race Series Gen II Custom Valves 11250-1

Valve, Intake, Stainless Steel, 1.890 in. Diameter, .275 in. Stem, 5.430 in. Length, Each

Part Number: MAN-11250-1

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Manley Race Series Gen II Custom Valves 11250-8

Valve, Intake, Stainless Steel, 1.890 in. Diameter, .275 in. Stem, 5.430 in. Length, Set of 8

Part Number: MAN-11250-8

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Manley Race Series Gen II Custom Valves 11257-1

Valves, Exhaust, Stainless Steel, 1.750 in. Diameter, .306 in. Stem, 5.400 in. Length, Universal, Set of 8

Part Number: MAN-11257-1

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

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