CP Piston BRS SBC 4.000 Bore 3.500 Stroke 6.000 Rod 9.8 To 1 Set Of 8 (MTO Non-Cancel)

This is a set of eight forged pistons from CP Pistons, designed for SBC (Small Block Chevrolet) engines. You get the pistons themselves, ready for installation. These pistons feature a 4.000-inch bore, a 3.500-inch stroke, and are intended to be used with a 6.000-inch connecting rod. They are designed to achieve a compression ratio of 9.8 to 1, which is a popular choice for many performance street and strip applications where a balance between pump gas compatibility and power is desired.

CP Pistons are well-known in the performance engine building world. These particular pistons are forged from high-strength aluminum alloy, a process that aligns the grain structure of the metal for improved durability and resistance to detonation compared to cast pistons. This makes them a solid option for engines that will see higher cylinder pressures and temperatures. The BRS series is a specific design from CP Pistons, often featuring updated skirt profiles and ring land designs to improve performance and longevity. The 4.000-inch bore size is standard for many SBC applications, and the 3.500-inch stroke combined with a 6.000-inch rod length is a common combination for achieving the 9.8:1 compression ratio with typical SBC cylinder heads.

It's important to note that these pistons are made-to-order and are non-cancelable once the order is placed. Also, they are not CARB approved and cannot be shipped to California. For a successful build, ensure you have the correct cylinder heads, crankshaft, and connecting rods to match the specified bore, stroke, rod length, and compression ratio. Proper ring gap setting and piston-to-wall clearance are critical for engine longevity, so always refer to CP Pistons' specific installation guidelines.