Manley Performance MAN Valve Spring Kits Valve Springs, Retainers - 221428-16

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most demanding race conditions. That means more consistent spring force deep into a run, reduced valve bounce, and improved overall stability for high-RPM performance. Built to outperform and outlast in real-world competition.

Manley Small Block Chevy LS Series .600in Lift Single NexTek High Perf Valve Springs

Manley Valve Spring, SPRING-1.311 SINGLE.

Manley Valve Spring, SPRING-1.311 SINGLE

Manley Valve Spring, 1.311 SINGLE

Engine Valve Spring Kit

SPRING-1.311 SINGLE

Valve Spring