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. Image is a representation. Actual product may vary

More From This Category

COMP Cams Conical Valve Spring Kit GM L83/L86/LT1/LS7 w/ Titanium Retainers

COMP Cams Conical Valve Spring Kit GM L83/L86/LT1/LS7 w/ Titanium Retainers

$1,598.01

CROWCAMS Valve Spring, 1.56 OD, 2.475/1.18 in. Length, 620lb/in, RH, Set of 16

CROWCAMS Valve Spring, 1.56 OD, 2.475/1.18 in. Length, 620lb/in, RH, Set of 16

$586.33

COMP Cams .999/1.083 OD Beehive Spring, 1.765 in. Installed Height, 1 Spring

COMP Cams .999/1.083 OD Beehive Spring, 1.765 in. Installed Height, 1 Spring

$69.26

MANLEY Valve Stem Seal, 5/16 in. Stem, .420 in. Guide OD, Each

MANLEY Valve Stem Seal, 5/16 in. Stem, .420 in. Guide OD, Each

$4.07

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