Upgrade your small block Chevy 350's bottom-end strength with the Speedmaster PCE289.1002 billet steel main caps. Designed as a direct replacement conversion, these splayed 4-bolt caps replace the factory 2-bolt units on the middle three main cap positions, delivering significantly improved clamping force and crankshaft retention for high-performance and racing applications.
Machined from billet steel for superior rigidity and durability, these caps are engineered to fit OEM SBC 350 blocks, making them an ideal upgrade for builders looking to reinforce a stock block without a full aftermarket replacement. The splayed bolt pattern helps distribute load more evenly across the block for added reliability under demanding conditions. Set includes the middle 3 caps.
