Speedmaster part number 1-274-012 delivers a complete set of I-beam connecting rods engineered specifically for Chevy Big Block 454 applications. Each rod is forged from 5140 chromoly steel and features a 6.385" center-to-center length, 2.200" big-end bore, and 0.990" pin bore, providing the dimensional precision your BBC build demands. ARP 2000 rod bolts are included, offering exceptional clamping force and fatigue resistance for high-performance street and track use.
The I-beam profile balances strength and weight for reliable power transfer under demanding conditions. Whether you are building a stout street engine or a performance-oriented racing combination, these Speedmaster rods give your Chevy 454 a solid foundation. Sold as a set to cover a complete engine build.
