3/8 Hi-Tech Pushrod - 8.400 Long

The 3/8 Hi-Tech Pushrod – 8.400 Long from COMP CAMS is a precision engine component designed for high-performance valve train systems in small-block and mid-range displacement engines. This chromoly pushrod serves as the critical mechanical link between the camshaft and rocker arms, transmitting lift commands with minimal deflection and maximum durability. Whether you're building a street performance engine, racing application, or restoring a classic muscle car, this pushrod provides the reliability demanded by builders and engine shops.

Manufactured from chromoly steel, the 3/8 Hi-Tech Pushrod features a 0.080-inch thick wall construction that reduces flex under high-RPM conditions while maintaining optimal weight distribution. The 8.400-inch length is engineered for mid-range block applications, and the 3/8-inch diameter provides a proven balance between strength and clearance in tight engine compartments. Hi-Tech pushrods are precision-ground and centerless-ground for runout control, ensuring consistent valve timing and preventing premature wear on rocker arm tips and valve lifter seats. This design minimizes parasitic losses and supports reliable power delivery across the entire RPM range.

Engine builders, performance enthusiasts, and automotive shops trust COMP CAMS pushrods for applications ranging from naturally aspirated builds to forced-induction platforms. Proper fitment requires verification of your specific engine block, cylinder head configuration, and rocker arm geometry—incorrect length can cause valve train geometry issues and catastrophic engine damage. Installation should be performed by experienced technicians who understand pushrod preload, oil passage alignment, and rocker arm geometry. For Chevrolet small-blocks, Pontiac, Oldsmobile, and other mid-displacement platforms, confirm compatibility with your exact cylinder head and block combination before purchase.