5/16in Moly Pushrods - 8.300in Long

The 5/16in Moly Pushrods - 8.300in Long from MANLEY are precision-engineered valve train components designed for serious performance boating and marine engine builds. These pushrods serve as the critical mechanical link between your engine's camshaft and rocker arms, translating cam lift into precise valve actuation. Built for high-revving applications where reliability and consistent valve timing cannot be compromised, these moly pushrods are the choice of marine engine builders who demand repeatability across extended throttle runs and demanding water conditions.

Manufactured from chromoly steel with a 5/16-inch diameter and 0.080-inch thick wall construction, the 5/16in Moly Pushrods deliver superior strength-to-weight characteristics essential for high-performance marine engines. The swedged ends provide a secure, consistent interface with both the camshaft follower and rocker arm, eliminating slop and ensuring predictable valve events cycle after cycle. Chromoly's enhanced fatigue resistance and heat dissipation properties make it the preferred material for pushrod applications where valve train speeds exceed stock specifications, and the molybdenum content enhances wear resistance at critical contact points during aggressive acceleration and sustained high-RPM operation.

Marine engine builders, performance rebuild shops, and dedicated boaters upgrading to aggressive cam profiles will benefit most from this complete set of 16 pushrods. The 8.300-inch length is engineered for specific block and head combinations found in popular performance marine engines; verify exact fitment with your engine's specifications before ordering. Installation requires careful deburring of all surfaces and proper rocker arm geometry verification to ensure the pushrods maintain full contact throughout the valve event. These are not bolt-and-forget components—they represent an investment in valve train stability that pays dividends in throttle response, engine longevity, and predictable performance across varied water temperatures and load conditions.