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.

More From This Category

MANLEY Valve, Titanium, Intake, 2.1 in. Head Dia, 0.3415 in. Stem Dia, 5.24 in. Height, Each

MANLEY Valve, Titanium, Intake, 2.1 in. Head Dia, 0.3415 in. Stem Dia, 5.24 in. Height, Each

$302.72

Sonnax Boost Valve Kit, Aisin Aw, Aw450-43Le, Each

Sonnax Boost Valve Kit, Aisin Aw, Aw450-43Le, Each

$125.70

MANLEY Valve, Race Master, Intake, 1.94 in. Head Dia, 0.3415 in. Stem Dia, 4.951 in. Length, SBC, Set of 8

MANLEY Valve, Race Master, Intake, 1.94 in. Head Dia, 0.3415 in. Stem Dia, 4.951 in. Length, SBC, Set of 8

$380.66

MANLEY Valve, Extreme Duty, Exhaust, 1.88 in. Head Dia, 0.3715 in. Stem Dia, 5.354 in. Length, BBC, Each

MANLEY Valve, Extreme Duty, Exhaust, 1.88 in. Head Dia, 0.3715 in. Stem Dia, 5.354 in. Length, BBC, Each

$129.64

MANLEY Valve, Race Flo, Intake, 2.165 in. Head Dia, 0.3133 in. Stem Dia, 4.9 in. Length, For Chevrolet L92, Each

MANLEY Valve, Race Flo, Intake, 2.165 in. Head Dia, 0.3133 in. Stem Dia, 4.9 in. Length, For Chevrolet L92, Each

$51.07