Manley 221431-16 - Springs Single Hemi

Manley 221431-16 - Springs Single Hemi

Valve Spring - NexTek - Conical - Single Spring - 353 lb/in Spring Rate - 1.100 in Coil Bind - 1.076 in / 1.311 in OD - Polished - Set of 16

Manley Valve Spring, SPRING-1.311 SINGLE HEMI.

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.