Rocker Shaft - .625 x 4.020 OAL

The T AND D MACHINE Rocker Shaft — .625 x 4.020 OAL (Part No. 10300) is a precision steel component designed specifically for high-performance engine rocker arm assemblies. This shaft is essential for builders working on Sport Comp rocker arm systems, where precise bore diameter and overall length are crucial for maintaining valve train geometry and reliable operation under high RPM conditions.

Constructed from high-quality steel, this rocker shaft ensures the rigidity necessary to maintain consistent bearing fit and minimize deflection during operation. Weighing 0.2 lbs, it is designed to reduce rotational inertia while providing the strength and durability required for competitive applications. The .625-inch outside diameter and 4.020-inch length conform to OEM specifications for T&D rocker arm installations, ensuring optimal performance.

Engine builders and race teams rely on T&D Machine parts for their precision and reliability, whether for drag racing or road course applications. This rocker shaft is compatible with small-block and mid-size performance engines, making it a vital component for those looking to achieve tight tolerances and consistent support throughout the valve train.