Speedmaster H-Beam connecting rods (PN 1-274-022) are precision-engineered from 4340 chromoly steel and feature a 6.135" center-to-center length, 2.200" large-end journal diameter, and .990" small-end pin bore. The H-beam profile delivers an excellent strength-to-weight ratio, making these rods a reliable upgrade for high-performance and race-built Chevrolet Big Block 454 engines. Each rod comes equipped with ARP 8740 rod bolts for superior clamping force and fatigue resistance compared to factory hardware.
Designed as a direct fitment for the Chevy Big Block 454, these Speedmaster connecting rods are ideal for enthusiasts and builders seeking a durable, performance-grade bottom-end upgrade. ARP 8740 fasteners ensure confident assembly and long-term reliability under demanding operating conditions. Sold as a set — confirm your exact bore, stroke, and piston pin specifications before ordering to ensure proper fitment for your build.
