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

COMP Cams Engine Valve Spring Seat, ID Spring Locator, 1.300 in. OD, .520 in. ID, .060 in. Thick, Each

COMP Cams Engine Valve Spring Seat, ID Spring Locator, 1.300 in. OD, .520 in. ID, .060 in. Thick, Each

$8.64

CROWCAMS Valve Spring, 1.050/1.295 OD, 2.18/1.1 in. Length, 385lb/in, RH, 1 Conical, Set of 16

CROWCAMS Valve Spring, 1.050/1.295 OD, 2.18/1.1 in. Length, 385lb/in, RH, 1 Conical, Set of 16

$574.33

COMP Cams Engine Valve Spring Seat, ID Spring Locator, 1.285 in. OD, .532 in. ID, .040 in. Thick, Set of 16

COMP Cams Engine Valve Spring Seat, ID Spring Locator, 1.285 in. OD, .532 in. ID, .040 in. Thick, Set of 16

$136.49

Sonnax Valve Body Separator Plate, ZF6Hp21/28/34 (Generation 2), Each

Sonnax Valve Body Separator Plate, ZF6Hp21/28/34 (Generation 2), Each

$109.27

COMP Cams Valve Seal, Positive Stop PTFE, For Dodge 5.7/6.2/6.4L HEMI, Each

COMP Cams Valve Seal, Positive Stop PTFE, For Dodge 5.7/6.2/6.4L HEMI, Each

$3.54

Crow Cams H/DUTY FORD V8 SPRING

Crow Cams H/DUTY FORD V8 SPRING

$334.95