CP Piston BRS Big Block 4.625 Bore 4.250 Stroke 6.385 Rod 1.275 Set Of 8 (MTO Non-Cancel)

This is a set of eight CP Pistons BRS forged pistons, specifically made for big block engines. They feature a 4.625 inch bore and are designed to work with a 4.250 inch stroke crankshaft and a 6.385 inch connecting rod. The wrist pin diameter is 1.275 inches. These pistons are built for high-performance applications where strength and reliability are critical. CP Pistons is a well-known name in racing circles for producing durable engine components that can withstand extreme conditions.

These pistons are constructed from a strong, forged aluminum alloy. Forging creates a denser, more uniform grain structure than casting, which makes the pistons significantly stronger and more resistant to fatigue and detonation. This is crucial for big block engines that often see high cylinder pressures and temperatures. The BRS series is designed with specific features to improve performance and durability, such as optimized skirt profiles for reduced friction and noise, and robust pin boss support for the wrist pins. The 1.275 inch wrist pin size is common for many high-performance connecting rods used in big block builds.

Because these pistons are made to order (MTO), they are not cancelable once the order is placed. This ensures you get a fresh set built to precise specifications. Please note that these pistons are not CARB approved and cannot be shipped to California. It's always a good idea to confirm all engine dimensions and component compatibility before ordering, especially for custom builds.