CP Piston BRS BBC 24.5CC Dome 4.530 Bore 4.000 Stroke 6.385 Rod Set Of 8 (MTO Non-Cancel)

Starting with a 4.530-inch bore and a 4.000-inch stroke, this set of eight forged pistons from CP Pistons is built for serious big block Chevrolet (BBC) engine builds. The 24.5cc dome volume is a key design choice that helps determine your final compression ratio, so it's important to match this with your cylinder head volume and gasket thickness for the desired performance outcome. These pistons are designed to work with a 6.385-inch connecting rod, a common length for many BBC applications, ensuring a proper deck height and piston-to-valve clearance when installed correctly.

CP Pistons uses a high-strength forged aluminum alloy for these pistons, which is crucial for handling the extreme pressures and temperatures found in high-performance engines. This material choice offers a strong yet lightweight option, helping to reduce reciprocating mass for improved engine response. The 24.5cc dome is precisely machined, and the overall construction is well-built to withstand demanding use. Because these are made-to-order, they are not cancelable once production begins, so double-check your specifications before ordering.

This piston set is a significant component for anyone rebuilding or upgrading a BBC engine where reliability and performance under stress are paramount. Remember that these pistons are not CARB approved and cannot be shipped to California. Always consult your engine builder or a trusted professional to ensure these pistons are the right fit for your specific build goals and that all necessary supporting components are accounted for during assembly.