Description
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 Valve Spring, SPRING-1.640 DOUBLE.
- Specially processed premium-grade chrome silicon that is virtually free of impurities or surface irregularities
- Available in polished versions to reduce friction, improve fatigue life, and minimize load loss
- Ideally suited for Sportsman Drag Racing applications
- Better valve train stability and component life
| Air Freight Prohibited: false |
| Not Carb Approved: false |
| Ltl Freight Required: false |
| Prop 65: Y |
| Part Type: automotive |
| Epa: N/A |
| Carb Acknowledgement Required: false |
| Regular Stock: false |
| Units Per Sku: 1 |










