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 Valve, Extreme Duty, Exhaust, 1.9 in. Head Dia, 0.3415 in. Stem Dia, 5.522 in. Length, For Chevrolet BB, Each

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MANLEY Valve, Severe Duty, Intake, 2.125 in. Head Dia, 0.3415 in. Stem Dia, 5.44 in. Length, Each

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MANLEY Valve, Race Flo, Intake, 2.1 in. Head Dia, 0.3133 in. Stem Dia, 5.035 in. Length, For Chevrolet SB, Set of 8

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