5/16 Moly Pushrods - 6.500 Long

The MANLEY 5/16 Moly Pushrods – 6.500 Long are precision-engineered valvetrain components designed for high-performance engine builds where durability and consistent valve actuation matter. These pushrods are essential for builders and mechanics upgrading factory valvetrain geometry, especially in modified small-block and big-block applications requiring stiffer components that can withstand aggressive cam profiles and higher spring pressures.

Manufactured from moly (molybdenum) steel, these pushrods offer superior strength-to-weight ratio compared to standard chromoly alternatives, reducing inertial loads on the valvetrain while maintaining rigidity under load cycling. The 5/16-inch diameter and 6.500-inch length specification fits a wide range of small-block configurations, and the moly construction resists wear at the pushrod cup and rocker arm interface—critical wear points in high-RPM engines.

Manley's manufacturing tolerances ensure consistent wall thickness and straightness, eliminating pushrod flex that can cause valve lash variation and inefficient power transfer from cam lobe to valve stem. Mechanics and engine builders choose Manley pushrods for stock-replacement service as well as modified builds using aftermarket rocker arms, higher-lift cams, and tuned compression ratios.