Manley 25170-8 4130 Chrome Moly Steel Pushrod 7/16" Diameter 9.600" Length .165" Wall

The Manley 25170-8 is a high-strength 4130 chrome moly steel pushrod engineered for high-performance and racing engine applications. Featuring a 7/16" (0.4375") diameter, 9.600" overall length, and a thick .165" wall thickness, this pushrod is built to resist flex and deflection under extreme valve train loads.

Key Features:

• Material: 4130 chrome moly steel — superior strength-to-weight ratio over mild steel
• Diameter: 7/16" (0.4375") for enhanced rigidity and stability
• Length: 9.600" overall length for precise valvetrain geometry
• Wall Thickness: .165" heavy wall construction for maximum resistance to bending under high RPM and spring pressure
• Heat-treated and precision-ground tips for consistent rocker arm and lifter contact
• Designed for high-lift camshafts and stiff valvesprings where standard pushrods may deflect or fail

Manley Performance pushrods are a trusted choice among professional engine builders for circle track, drag racing, street/strip, and other demanding applications. The combination of 4130 chrome moly material and heavy .165" wall thickness makes these pushrods ideal for high-horsepower builds where valvetrain rigidity is critical to consistent performance and engine longevity.