Manley NexTek Series Drag Race Valve Springs

Features:

• Higher natural frequency provides improved valvetrain control and higher RPM potential
• All springs are triple design springs except for 660-221424, 660-221425 & 660-221454 which are double design without damper
• 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
• Better valvetrain stability and component life
• Ultra clean, high tensile strength chrome silicon steel
• Polish Finish surface reduces friction, improves fatigue life and minimize load loss.
• Ideal loads for multiple applications with minimal load loss

Click Here to see Valve Springs Load Chart