5/16in Moly Pushrods - 8.250in Long

The MANLEY 5/16in Moly Pushrods - 8.250in Long (MPN 25701-16) are precision-engineered valve train components designed for high-performance marine and automotive engines. These chromoly pushrods feature a 5/16-inch diameter with 0.080-inch thick walls and swedged ends, delivering the strength and durability required in demanding applications where valve actuation reliability directly impacts engine performance and longevity.

The 8.250-inch length accommodates specific engine block configurations and cylinder head geometries common in marine powerplants. Moly (molybdenum) construction reduces friction between pushrod and rocker arm, improving valve response and reducing parasitic losses. The 0.080-inch wall thickness provides the structural rigidity needed to resist deflection under high spring pressures and aggressive valve timing profiles. Swedged ends ensure secure seating in both rocker arm and lifter sockets, eliminating the loose fit and noise associated with inferior pushrod design. This set of 16 pushrods covers a complete V-8 engine, simplifying replacement during major overhauls or performance upgrades.

These pushrods are essential for boaters and marine technicians rebuilding or upgrading inboard engines, particularly those running higher RPM or increased boost levels. They're equally suited for vintage restoration work where original pushrods have worn or suffered damage. Users who prioritize engine durability, reduced valve train noise, and consistent performance across seasons will find MANLEY's moly construction a measurable improvement over standard steel pushrods. The exact 8.250-inch specification ensures proper geometry with your engine's rocker ratio and valve lift, critical for maintaining precise valve timing and preventing contact issues.

MANLEY is recognized for manufacturing tight-tolerance valve train components trusted in competition and high-output marine applications. These pushrods represent an engineering step above basic replacement parts, particularly beneficial in salt-water environments where superior materials resist corrosion better than mild steel alternatives.