Manley 25308-8 Performance Pushrod Diameter Length Chromoly Engine Push Rod - 3/8 6.450 4130

The Manley 25308-8 is a high-performance pushrod engineered for demanding valvetrain applications. Precision-manufactured from 4130 chromoly steel tubing, this pushrod delivers exceptional strength, stiffness, and fatigue resistance for engines operating under high spring loads and elevated RPM conditions.

Key Specifications:

• Material: 4130 chromoly steel for superior strength-to-weight ratio
• Diameter: 3/8 inch
• Length: 6.450 inches (center to center)
• Wall Thickness: .120 inch heavy-wall construction
• End Style: Swedged ends with meticulously formed radii
• Finish: Heat-treated with black oxide coating

Performance Features:

• Heavy .120" wall thickness provides increased stiffness and resistance to deflection
• Excellent concentricity and closely controlled length tolerances ensure reliable valve timing
• Black oxide finish reduces wear and friction at contact points
• Precision heat treatment maximizes durability and service life
• Consistent wall thickness throughout for predictable performance

Ideal for performance street engines, circle track racing, and other applications requiring robust valvetrain components that can withstand high spring pressures and sustained high-RPM operation. The heavy .120" wall construction makes these pushrods particularly well-suited for engines running power adders like nitrous oxide or forced induction systems.