Upgrade your Big Block Chevy 454 build with the Speedmaster PCE276.1034 forged 4340 steel crankshaft. Engineered with a 4.500-inch stroke, standard main journals, 2.200-inch rod journals, and an internally balanced design, this crank delivers the strength and precision demanded by high-performance street and racing applications.
The 2-piece rear main seal configuration ensures compatibility with traditional BBC 454 engine blocks, while the 4340 forged steel construction provides superior tensile strength and fatigue resistance over cast alternatives. A reliable foundation for your next Big Block Chevy performance build.