5/16 Hi-Tech Pushrod - 8.400 Long

The 5/16 Hi-Tech Pushrod - 8.400 Long by COMP CAMS is an essential component for high-performance engine builds and serious valve train modifications. Built for enthusiasts and mechanics who demand precision in their small-block and big-block applications, this pushrod connects the rocker arm to the lifter, transmitting the precise lift commands your cam profile demands. Whether you're upgrading a stock engine or fine-tuning a race-ready powerplant, selecting the correct pushrod length and diameter is critical to maintaining proper valve geometry and maximizing power output.

COMP CAMS Hi-Tech pushrods are engineered with a 5/16-inch diameter, a standard size for many American V8 platforms, and feature a precisely measured 8.400-inch length that ensures correct valve lash adjustment and rocker arm geometry. The manufacturing process yields a lightweight yet rigid design—at just 0.13 pounds—that minimizes deflection under high RPM and aggressive valve spring pressure. Hi-Tech construction means superior straightness tolerance and consistent wall thickness, preventing the harmonics and flex that can steal horsepower and create valve train instability. This level of precision is non-negotiable when you're operating at elevated RPMs or running wild camshaft profiles with aggressive ramps.

Mechanics and engine builders rely on COMP CAMS pushrods for stock restorations, street performance upgrades, and full competition builds. The 8.400-inch length fits a wide range of small-block applications, including classic Chevrolet, Ford, and Mopar engines, though always verify your specific engine's requirements before installation. Proper pushrod length is essential; too short and you'll lose valve lift, too long and you risk valve float and bent pushrods. When paired with quality rocker arms, hardened lifters, and a properly degreed cam, this Hi-Tech pushrod delivers the reliability and valve train control that separates amateur builds from professional-grade engine work.