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, Custom, Titanium, .3110 in. Stem Dia, Each

MANLEY Valve, Custom, Titanium, .3110 in. Stem Dia, Each

$318.84

MANLEY Valve, Custom, Titanium, .3415 in. Stem Dia, Each

MANLEY Valve, Custom, Titanium, .3415 in. Stem Dia, Each

$350.52

MANLEY Valve, Severe Duty, Intake, 1.72 in. Head Dia, 0.3415 in. Stem Dia, 5.14 in. Length, SBC, Each

MANLEY Valve, Severe Duty, Intake, 1.72 in. Head Dia, 0.3415 in. Stem Dia, 5.14 in. Length, SBC, Each

$78.54

MANLEY Valve, Race Master, Exhaust, Bead Loc, 32.0mm Head Dia, 0.313 in. Stem Dia, 4.405 in. Length, Volkswagen, Set of 4

MANLEY Valve, Race Master, Exhaust, Bead Loc, 32.0mm Head Dia, 0.313 in. Stem Dia, 4.405 in. Length, Volkswagen, Set of 4

$190.33

MANLEY Valve, Intake, 2.5 in. Head Dia, 0.3415 in. Stem Dia, 6.4 in. Length, Set of 8

MANLEY Valve, Intake, 2.5 in. Head Dia, 0.3415 in. Stem Dia, 6.4 in. Length, Set of 8

$2,591.35

MANLEY Valve, Street Master, Exhaust, 1.88 in. Head Dia, 0.3415 in. Stem Dia, 5.422 in. Length, BBC, Set of 8

MANLEY Valve, Street Master, Exhaust, 1.88 in. Head Dia, 0.3415 in. Stem Dia, 5.422 in. Length, BBC, Set of 8

$299.37