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, Severe Duty, Exhaust, 1.6 in. Head Dia, 0.311 in. Stem Dia, 5.54 in. Length, SBC, Set of 8

MANLEY Valve, Severe Duty, Exhaust, 1.6 in. Head Dia, 0.311 in. Stem Dia, 5.54 in. Length, SBC, Set of 8

$607.34

MILODON Valve, Intake, Race, Stainless Steel, 2.02 in. Diameter, +.100 Long, For Chevrolet, Small Block, 350, 383, 400, Each

MILODON Valve, Intake, Race, Stainless Steel, 2.02 in. Diameter, +.100 Long, For Chevrolet, Small Block, 350, 383, 400, Each

$57.67

MANLEY Valve, Titanium, Intake, 2.125 in. Head Dia, 0.3415 in. Stem Dia, 5.24 in. Height, Set of 8

MANLEY Valve, Titanium, Intake, 2.125 in. Head Dia, 0.3415 in. Stem Dia, 5.24 in. Height, Set of 8

$2,421.90

Sonnax Oversized Pressure Regulator Valve Kit, GM, 6T70/75/80 Gen II, Each

Sonnax Oversized Pressure Regulator Valve Kit, GM, 6T70/75/80 Gen II, Each

$66.55

Trick Flow Valves, Intake, Stainless Steel, 2.020 in. Diameter, 8.0mm Stem, 4.900 in. Length, GM LS, Set of 8

Trick Flow Valves, Intake, Stainless Steel, 2.020 in. Diameter, 8.0mm Stem, 4.900 in. Length, GM LS, Set of 8

$434.97