SBF 302 5/16 H/R Pushrods - 6.400 Long

The SBF 302 5/16 H/R Pushrods - 6.400 Long from COMP Cams are precision valve train components engineered for Small Block Ford 302 cubic inch engines running high-lift, high-ratio rocker arms. These pushrods serve as the critical mechanical link between your cam follower and rocker arm, translating cam lift into valve actuation with zero deflection or misalignment. Whether you're building a street performance 302, a weekend bracket racer, or refreshing a classic Ford engine, selecting the correct pushrod length and diameter directly impacts valve timing accuracy, engine reliability, and peak power delivery.

COMP Cams manufactures these pushrods with precision-seamless steel tubing and hardened ends to withstand the continuous stress cycling inherent in modern high-lift cam profiles. The 5/16-inch diameter provides the optimal balance between rigidity and weight, minimizing flex under aggressive valve acceleration while keeping overall engine mass low. At 6.400 inches long, this length is specifically calculated for SBF 302 applications using 1.6:1 ratio rocker arms; using an incorrect length causes valve lash errors, reduces flow efficiency, and can lead to valve-to-piston contact or inadequate valve closure. The hardened ball ends ensure consistent contact with both the lifter and rocker arm socket, preventing wear-in time that could otherwise introduce unwanted lash variation.

These pushrods are essential for any 302 engine upgrade involving aftermarket cam installation, rocker arm replacement, or cylinder head work. Technicians and enthusiasts appreciate COMP Cams' tight manufacturing tolerances—length variance is held within 0.025 inches—ensuring repeatable, stable valve lash across all eight cylinders. Before installation, always verify rocker arm ratio and lifter type against the specified pushrod length; a mismatch will cause catastrophic valve train failure. This is a direct replacement or upgrade component suitable for carbureted and fuel-injected SBF 302 builds, from vintage muscle car restorations to modern hot rod projects requiring factory-compatible geometry with enhanced durability.