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

Sonnax 1-2 Accumulator Valve Spring Kit, Ford, Fd C6, (Bag Of 5 Sets), Each

Sonnax 1-2 Accumulator Valve Spring Kit, Ford, Fd C6, (Bag Of 5 Sets), Each

$29.80

MANLEY Valve Spring Shims, Hardened, Steel, 1.480 O.D, .030 in. Thick, Set of 50

MANLEY Valve Spring Shims, Hardened, Steel, 1.480 O.D, .030 in. Thick, Set of 50

$69.69

MANLEY Valve Lock, Super 7 Degree, Conventional, Titanium, -.050 .3415 in. Stem, Set of 16

MANLEY Valve Lock, Super 7 Degree, Conventional, Titanium, -.050 .3415 in. Stem, Set of 16

$413.60

AFR Valve Guide, BBC 18° 11/32 Bronze, .502" OD, Set of 16

AFR Valve Guide, BBC 18° 11/32 Bronze, .502" OD, Set of 16

$461.90

Trick Flow Valve Spring Retainers, Titanium, 7 degree, 1.300 in. O.D, 0.675 in. I.D, Set of 16

Trick Flow Valve Spring Retainers, Titanium, 7 degree, 1.300 in. O.D, 0.675 in. I.D, Set of 16

$522.00