Valve Spring - NexTek - Dual Spring - 780 lb/in Spring Rate - 1.130 in Coil Bind - 1.500 in OD - Set of 16

Valve Spring

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.

Additional Information

Manley Valve Spring, SPRING-1.500 DOUBLE

Part Type

Engine Valve Spring Kit

• Accepts smaller, lighter retainers which also promotes higher revs
• Dual spring design reduces friction, which generates less heat and translates into greatly reduced load loss
• Extensively tested on the Spintron, dyno and race track (including blown nitro engines) and proven highly effective
• Higher natural frequency and lower active mass provides improved valvetrain control and higher RPM potential
• Smaller diameter, lightweight dual design allows engine to rev higher with improved valve train control
• Ultra clean, high tensile strength chrome silicon material

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Reference Information

Valve Spring, Nex Tek, Dual, 1.500 in. Outside Diameter, 780 lbs/in., Set of 16

Manley lightweight dual drag race valve springs offer exceptional strength and performance, while reducing weight and promoting higher revs. These springs are manufactured from super-clean, high-tensile chrome silicon steel and are shot-peened to MIL specs for maximum fatigue life. They feature proprietary, multi-step heat-treating that minimizes load loss and have computer-aided modeling to minimize valve bounce and valve gear separation. Manley valve springs are smaller in diameter with a lightweight dual design, allowing engines to rev higher faster, and with better valvetrain control. An extended tip thickness is designed to eliminate overload breakage, and their tightly controlled open-end flatness reduces valve stem side loading. It's amazing to think that a tenth of a second can make any difference, but racers win or lose sometimes by thousandths. Manley lightweight dual drag race valve springs will add strength, while reducing weight and times.