GM Performance Parts offers a complete line of heavy-duty pushrods for most GM engines. They are designed to deliver outstanding performance in high-performance street and competition applications and are available in two materials: 1010 mild steel, which is suitable for high-performance street cars, power boats, street rods, and limited competition applications, and 4130 chrome-moly steel, for maximum-performance racing engines.
Heavy-duty pushrods for smallblock V-8 and V-6/90° engines are available in standard and 0.100" extended lengths. Longer pushrods can be used to restore the correct valvetrain geometry when using a high-lift camshaft with a small base circle. Extra-long pushrods also are recommended when longer than stock valves are installed. GM Performance Parts pushrods are case-hardened for use with pushrod guide plates.