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.
Features
- Higher natural frequency and lower active mass provides improved valvetrain control and higher RPM potential
- 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
- Smaller diameter, lightweight dual design allows engine to rev higher with improved valve train control
- Accepts smaller, lighter retainers which also promotes higher revs
- Ultra clean, high tensile strength chrome silicon material
Specs
- Manley Valve Spring, SPRING-1.540 DOUBLE
- Valve Spring Quantity: 16
- Valve Spring Series: NexTek? Series
- Valve Spring Material: Chrome Silicon
- Valve Spring Type: Double
- Valve Spring Coil Bind Height: 1.215
- Valve Spring Rate: 964
- Valve Lift - Maximum: 1.000
- Installed Pressure and Height: 425 @ 2.300
- Open Pressure and Height: 1389 @ 1.300
- Industry: Automotive
- Out of Stock Message: Call for Availability
- Title: Manley Valve Spring, SPRING-1.540 DOUBLE
- Prop 65 Yes/No: Yes
- Prop 65 (C, R or CR): CR
- Prop 65 - Short Label: Prop 65 Warning Label.JPG
- Engine Type: ICE
- Product Market: Domestic
- Average Gram Weight: 154
- Product Type: Engine Valve Spring
- Valve Spring Outer Diameter: 1.540
- Valve Spring Inner Diameter: 0.710
