5/16in Moly Pushrods - 8.650in Long

The 5/16in Moly Pushrods - 8.650in Long from MANLEY represent a critical upgrade for serious engine builders and high-performance mechanics tackling small-block and mid-displacement applications. These chromoly pushrods are engineered to replace stock components in applications where valve train stability, durability, and precise geometry become non-negotiable—particularly in forced-induction builds, radical cam profiles, and competition engines where factory pushrods flex or fail under sustained load. A complete set of 16 units ensures you have matched pairs for all cylinders plus spares.

Constructed from high-strength chromoly steel with a 0.080in thick wall and 5/16in diameter, these pushrods deliver superior rigidity compared to hollow stock units while remaining lightweight at 2.4 lbs per set. The swedged ends provide a solid interface with rocker arms and lifters, eliminating the rocking motion and valvetrain noise common in worn or bent stock pushrods. The 8.650in length accommodates most conventional small-block geometries, though precise measurement of your specific engine platform is essential before ordering—pushrods that are even slightly off-length will cause valve lash problems, binding, or inadequate valve opening.

Engine builders restoring vintage muscle cars, building stroker motors, or upgrading to aggressive hydraulic or solid roller cams rely on MANLEY pushrods to maintain valve timing accuracy and prevent geometry-induced failures. Installation requires proper valve lash adjustment and confirmation that rocker geometry is compatible with the 5/16in diameter—some older rockers or custom builds may require adapters. Before installation, validate your engine's pushrod length specification using a pushrod length checker tool to guarantee correct valve train geometry and optimal performance.