CP Piston BRS BBC 571Ci 4.625 Bore 1.120 Ch 14.1:1 Cr Set Of 8 (MTO Non-Cancel)

This order gets you a complete set of eight CP Pistons BRS BBC pistons, ready for your high-performance engine build. These are forged pistons, meaning they start as a solid block of aluminum that's heated and hammered into shape under immense pressure. This process creates a much stronger and more durable piston than cast aluminum, making them ideal for demanding applications where high cylinder pressures and temperatures are common. The BRS series is designed for big block Chevrolet (BBC) applications, specifically for a 571 cubic inch displacement, with a 4.625 inch bore size.

You'll find a compression height of 1.120 inches on these pistons, which is a critical measurement that determines where the piston crown sits in relation to the crankshaft centerline at top dead center. This measurement, combined with your cylinder head chamber volume and gasket thickness, will result in a 14.1:1 compression ratio. This high compression ratio is typically used in naturally aspirated racing engines where maximum power output is the goal, requiring high-octane fuel. These pistons are made to order, so please note that once the order is placed, it cannot be canceled.

Because these are custom-made pistons, it's important to ensure they are the correct specification for your engine build before ordering. They are not CARB approved and cannot be shipped to California. Always consult your engine builder or a qualified professional to confirm these pistons meet the requirements for your specific application, especially regarding fuel type and cylinder head compatibility.