CP Piston BRS SBC 4.165 Bore 3.875 Stroke 6.000 Rod Set Of 8 (MTO Non-Cancel)

Forged from 2618-T61 aluminum, these CP Pistons BRS series pistons are built for high-performance Small Block Chevy (SBC) engines. The 4.165-inch bore and 3.875-inch stroke create a displacement of 427 cubic inches when paired with a 6.000-inch connecting rod, a popular combination for serious engine builds. This set includes eight pistons, designed to handle the stresses of boosted or naturally aspirated performance applications.

The BRS series features a unique forging process that results in a well-built, strong piston capable of withstanding extreme cylinder pressures. They come standard with a 0.040-inch undersize bore, which is crucial for engine builders who need to hone the cylinders to a precise final dimension. This ensures a perfect seal and optimal performance. The included wrist pins are 0.230-inch wall thickness, providing the strength needed for demanding use.

When building a high-performance engine, the pistons are a critical component. These CP Pistons are made to tight tolerances, ensuring they fit right and perform reliably. Remember that these pistons are not CARB approved and cannot be shipped to California. It's always recommended to consult your engine builder or the manufacturer's documentation for specific installation requirements and compatibility with other engine components.