5/16in Moly Pushrods - 7.850in Long

The 5/16in Moly Pushrods - 7.850in Long from MANLEY represent a critical engine component for serious marine and high-performance applications where reliability under stress is non-negotiable. These pushrods transfer precise valve actuation commands from your engine's camshaft to rocker arms, directly influencing combustion timing and overall powerplant efficiency. Built for boaters and performance enthusiasts who demand consistency across thousands of operating hours, MANLEY's engineering ensures that valve train geometry remains stable whether you're cruising calm waters or pushing your vessel to its limits.

Constructed from chromoly steel with 0.080-inch thick walls and swedged ends, the 5/16-inch diameter design balances strength-to-weight ratio while resisting deflection under high valve spring pressures. The swedged end construction—where the pushrod diameter transitions smoothly at connection points—distributes loads evenly and minimizes stress concentration, a critical feature when operating at elevated RPMs or in high-heat marine environments. At 7.850 inches in length, this specification fits common small-block and mid-block configurations, and the chromoly material's superior fatigue resistance ensures these pushrods maintain dimensional accuracy across extended operating seasons without permanent deformation or failure.

Boaters restoring or upgrading classic marine engines, as well as those building modern high-output powerplants, benefit from MANLEY's precision manufacturing and tight tolerances. These pushrods are sold as a set of 16, covering most V8 engine configurations. Before ordering, verify your engine's specific pushrod length requirement and diameter specification—incorrect sizing compromises valve timing and can cause catastrophic valve train damage. Installation requires proper rocker arm geometry setup and valve lash adjustment; consult your engine manual or work with a qualified marine mechanic to ensure correct fitment and valve train clearance.