3/8 Hi-Tech Pushrod - 8.300 Long

The 3/8 Hi-Tech Pushrod - 8.300 Long from COMP CAMS is engineered for high-performance marine engine builds where precision valve actuation is non-negotiable. Whether you're restoring a vintage inboard or upgrading a performance boating platform, this chromoly pushrod delivers the durability and accuracy demanded by serious engine builders and marine technicians. Built to OEM and competition standards, it's the choice for anglers and boaters whose engines need to run reliably at wide-open throttle for extended periods on the water.

Constructed from chromoly steel with a 0.080-inch thick wall, this pushrod combines lightweight strength with exceptional resistance to deflection under extreme valve train loads. The 3/8-inch diameter and 8.300-inch length are precisely manufactured to match OEM specifications, ensuring proper geometry in the lifter-to-rocker assembly and eliminating the valve train slop that causes power loss and rough idle at idle and cruise. Hi-Tech construction means tighter tolerances and superior surface finish compared to standard pushrods, reducing friction and promoting consistent, crisp valve timing across the RPM range.

This pushrod is ideal for rebuilds and performance upgrades on small-block and mid-block marine engines where OEM or aftermarket cylinder head and block specifications call for 8.300-inch pushrods with 3/8-inch diameter. Installation requires no special tooling—simply install during valve train assembly, ensuring proper seating in the lifter and rocker arm cup. A single pushrod is sold; order the quantity matching your engine's cylinder count for a complete valve train overhaul. Weighing just 0.17 lbs per unit, it contributes minimal rotating mass while maximizing reliability in salt-water and freshwater applications.