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

Crow Cams Ford BA XR8 Valve Spring Kit

Crow Cams Ford BA XR8 Valve Spring Kit

$1,102.85

MANLEY Valve Spring Retainer, 10 Degree, H-13, 1.560 in. OD, Double, Each

MANLEY Valve Spring Retainer, 10 Degree, H-13, 1.560 in. OD, Double, Each

$35.12

MANLEY Valve Spring and Retainer Kit, .550 in. Max Lift, For Nissan Patrol TB48, w/o Valve Locks, Kit

MANLEY Valve Spring and Retainer Kit, .550 in. Max Lift, For Nissan Patrol TB48, w/o Valve Locks, Kit

$895.65

COMP Cams Steel Retainer, Superlock, 10 Degree, 1.500 in.-1.550 in. OD Triple Valve Spring, Each

COMP Cams Steel Retainer, Superlock, 10 Degree, 1.500 in.-1.550 in. OD Triple Valve Spring, Each

$8.71

Trick Flow Valve Spring, PAC Racing, Beehive, .930 in./1.025 in. O.D, 300 lbs./in. Rate, 1.060 in. Coil Bind, Each

Trick Flow Valve Spring, PAC Racing, Beehive, .930 in./1.025 in. O.D, 300 lbs./in. Rate, 1.060 in. Coil Bind, Each

$31.32

MANLEY Valve Lock, 10 Degree Machined, Conventional, Steel, +.050 .3110 in. Stem, Each

MANLEY Valve Lock, 10 Degree Machined, Conventional, Steel, +.050 .3110 in. Stem, Each

$9.68