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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.

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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: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

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