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

MANLEY Valve Spring Retainer, Steel, 7 Degree, 1.437 in. OD, Set of 16

MANLEY Valve Spring Retainer, Steel, 7 Degree, 1.437 in. OD, Set of 16

$140.86

Sonnax Shim, Chrysler, 40Te/S, 41Ae/Te, 41Te/S, 42Le,

Sonnax Shim, Chrysler, 40Te/S, 41Ae/Te, 41Te/S, 42Le,

$15.28

MANLEY Valve Spring Retainer, Titanium, Super 7 Degree, 1.500 in. OD, Double, Lightweight, Set of 16

MANLEY Valve Spring Retainer, Titanium, Super 7 Degree, 1.500 in. OD, Double, Lightweight, Set of 16

$890.07

COMP Cams Valve Spring, Dual, 1.625 in. O.D, 630 lbs./in. Rate, 1.090 in. Coil Bind Height, Each

COMP Cams Valve Spring, Dual, 1.625 in. O.D, 630 lbs./in. Rate, 1.090 in. Coil Bind Height, Each

$76.57

COMP Cams Titanium Retainer, 10 Degree, 1.500 in.-1.550 in. OD Double Springs, Each

COMP Cams Titanium Retainer, 10 Degree, 1.500 in.-1.550 in. OD Double Springs, Each

$58.91

MANLEY Valve Spring, 1.126 in. OD, 330 lbs./in. Rate, 0.880 in. Coil Bind Height, For Subaru EJ20/STiEJ25, Set of 16

MANLEY Valve Spring, 1.126 in. OD, 330 lbs./in. Rate, 0.880 in. Coil Bind Height, For Subaru EJ20/STiEJ25, Set of 16

$711.04