CP Piston BRS SBC 4.165 Bore Stroke 4.00 6.00 Rod 1.000 Set Of 8 (MTO Non-Cancel)

If you're building a high-performance Small Block Chevy (SBC) engine, these CP Pistons forged pistons are a solid choice. This set is designed for a 4.165 inch bore and uses a 4.00 inch stroke with a 6.00 inch rod, featuring a 1.000 inch wrist pin. CP Pistons are well-known in racing circles for their strength and precision, and this set is no exception. They are made from a strong aluminum alloy that can handle the high pressures and temperatures found in a performance engine build.

These pistons are forged, meaning the aluminum is heated and hammered into shape under extreme pressure. This process creates a much denser and stronger grain structure than cast pistons, making them far more resistant to detonation and fatigue. The specific BRS (Big Block Chevy Stroke) design allows for a larger stroke in an SBC block, which can significantly increase displacement and power potential. The 4.165 inch bore is a common size for many performance SBC builds, often used when boring out a standard block or when starting with a larger displacement block.

It's important to note that these pistons are made to order and are non-cancelable once the order is placed. This means you'll want to be absolutely sure of your engine specifications before confirming your purchase. Because they are custom-made, expect a lead time. They are not CARB approved and cannot be shipped to California. For serious engine builders looking for a robust and reliable piston for their next project, this set from CP Pistons is a well-built option.