Manley lightweight dual drag race valve springs offer exceptional strength and performance, while reducing weight and promoting higher revs. These springs are manufactured from super-clean, high-tensile chrome silicon steel and are shot-peened to MIL specs for maximum fatigue life. They feature proprietary, multi-step heat-treating that minimizes load loss and have computer-aided modeling to minimize valve bounce and valve gear separation. Manley valve springs are smaller in diameter with a lightweight dual design, allowing engines to rev higher faster, and with better valvetrain control. An extended tip thickness is designed to eliminate overload breakage, and their tightly controlled open-end flatness reduces valve stem side loading. It's amazing to think that a tenth of a second can make any difference, but racers win or lose sometimes by thousandths. Manley lightweight dual drag race valve springs will add strength, while reducing weight and times.

More From This Category

COMP Cams Valve Spring, Single, 1.230 in. O.D, 308 lbs./in. Rate, 1.150 in. Coil Bind Height, Set of 16

COMP Cams Valve Spring, Single, 1.230 in. O.D, 308 lbs./in. Rate, 1.150 in. Coil Bind Height, Set of 16

$136.46

Trick Flow Valve Spring Retainers, Chromoly Steel, Set of 16

Trick Flow Valve Spring Retainers, Chromoly Steel, Set of 16

$174.73

MANLEY Valve Spring Locator, Outside, Heat-Treated, Fits 1.677 in. OD. Spring, .635 in. ID, 1.74 in. OD, .062 in. Thick, Each

MANLEY Valve Spring Locator, Outside, Heat-Treated, Fits 1.677 in. OD. Spring, .635 in. ID, 1.74 in. OD, .062 in. Thick, Each

$11.77

COMP Cams Valve Spring, Dual, 1.540 in. O.D, 550 lbs./in. Rate, 1.100 in. Coil Bind Height, Each

COMP Cams Valve Spring, Dual, 1.540 in. O.D, 550 lbs./in. Rate, 1.100 in. Coil Bind Height, Each

$25.84

MANLEY Valve Spring Locator, Inside, Heat-Treated, Fits 1.550 in. OD. Spring, .635 in. ID, 1.535 in. OD, .062 in. Thick, Black, Each

MANLEY Valve Spring Locator, Inside, Heat-Treated, Fits 1.550 in. OD. Spring, .635 in. ID, 1.535 in. OD, .062 in. Thick, Black, Each

$11.77

MANLEY Valve Spring Retainer, Titanium, 10 Degree, +.100 in, 1.550 in. OD, Double, Each

MANLEY Valve Spring Retainer, Titanium, 10 Degree, +.100 in, 1.550 in. OD, Double, Each

$35.37