Speedmaster part 1-274-020 connecting rods are CNC-machined from forged 4340 chromoly steel in a proven H-beam profile, delivering outstanding strength and fatigue resistance for high-performance and racing Chevy Small Block 350 applications. Each rod measures 6.100" center-to-center length with a 2.100" big-end bore and 0.927" pin bore, ensuring precise fitment and proper rotating-assembly balance.
Every set ships with ARP 8740 chromoly rod bolts pre-installed, providing reliable clamping force to handle elevated horsepower and RPM demands. Designed as a direct upgrade over stock rods, these Speedmaster H-beams are ideal for street/strip and track builds where durability and consistent performance are essential in a Chevy SBC 350 engine.