These Manley NexTek valve springs are better-designed valve springs using state-of-the-art machinery for purpose-built racing engines. They're manufactured from super-clean, high-tensile chrome silicon steel and are shot-peened to MIL specs for maximum fatigue life. They feature a proprietary, multi-step heat-treating that minimizes load loss and have computer-aided modeling to minimize valve bounce and valve gear separation. The Manley NexTek valve springs are smaller diameter and lightweight, allowing engines to rev higher faster. They have an extended tip thickness designed to eliminate overload breakage, and their tightly controlled open-end flatness reduces valve stem side loading.

More From This Category

MANLEY Lash Cap, TensileMax, .3415 in. Valve Stem, .080 in. Thick, Each

MANLEY Lash Cap, TensileMax, .3415 in. Valve Stem, .080 in. Thick, Each

$32.86

MANLEY Valve Spring Retainer, 10 Degree, +.100 in, H-13, 1.550 in. OD, Double, Set of 16

MANLEY Valve Spring Retainer, 10 Degree, +.100 in, H-13, 1.550 in. OD, Double, Set of 16

$561.39

COMP Cams Valve Spring Shim, Steel, Hardened, 1.250 in. OD, .814 in. ID .030 in. Thick, Set of 16

COMP Cams Valve Spring Shim, Steel, Hardened, 1.250 in. OD, .814 in. ID .030 in. Thick, Set of 16

$25.04

MANLEY Valve Lock, Super 7 Degree, Bead Loc, .3415 in. Stem, LocCap, Each

MANLEY Valve Lock, Super 7 Degree, Bead Loc, .3415 in. Stem, LocCap, Each

$46.61