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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.

Results 1 - 6 of 6

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: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

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: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

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: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

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: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

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: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Valves, Exhaust, Stainless Steel, 1.625 in. Diameter, .342 in. Stem, 5.640 in. Length, Set of 8

Part Number: MAN-11245-8

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

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