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

Crow Cams HIGH PERF. 4 CYL. DUAL SPRING

Crow Cams HIGH PERF. 4 CYL. DUAL SPRING

$188.85

MANLEY Valve Spring Locator, Inside, Heat-Treated, Fits 1.34 in. OD. Spring, .52 in. ID, 1.32 in. OD, .15 in. Thick, Black, Each

MANLEY Valve Spring Locator, Inside, Heat-Treated, Fits 1.34 in. OD. Spring, .52 in. ID, 1.32 in. OD, .15 in. Thick, Black, Each

$11.77

MANLEY Valve Spring Retainer, Steel, 7 Degree, 1.250 in. OD, +.050, Each

MANLEY Valve Spring Retainer, Steel, 7 Degree, 1.250 in. OD, +.050, Each

$8.80

MANLEY Valve Lock, 10 Degree Machined, Bead Loc, PVC Titanium, +.050 .3110 in. Stem, Set of 8

MANLEY Valve Lock, 10 Degree Machined, Bead Loc, PVC Titanium, +.050 .3110 in. Stem, Set of 8

$314.35

COMP Cams Conical Spring, Beehive .600 in. Lift, Spring Kit w/ Steel Retainers '09-'18 For Dodge 5.7L/6.2/6.4 HEMI, Kit

COMP Cams Conical Spring, Beehive .600 in. Lift, Spring Kit w/ Steel Retainers '09-'18 For Dodge 5.7L/6.2/6.4 HEMI, Kit

$992.49

COMP Cams Titanium Retainer, 7 Degree, 11/32 Valve w 26915/918 Beehive Springs, Set of 16

COMP Cams Titanium Retainer, 7 Degree, 11/32 Valve w 26915/918 Beehive Springs, Set of 16

$712.13