Manley 221424-1 - Valve Spring, SPRING-1.640 DOUBLE

Manley 221424-1 - Valve Spring, SPRING-1.640 DOUBLE

Valve Spring - NexTek - Dual Spring - 647 lb/in Spring Rate - 1.070 in Coil Bind - 1.640 in OD - Each

Manley Valve Spring, SPRING-1.640 DOUBLE

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.

• Specially processed premium-grade chrome silicon that is virtually free of impurities or surface irregularities
• Better valve train stability and component life
• Ideally suited for Sportsman Drag Racing applications
• Available in polished versions to reduce friction, improve fatigue life, and minimize load loss