CP Piston BRS Big Block Ford 521 Head: 460 Iron Bore : 4.390 Set Of 8 (MTO Non-Cancel)

This is a set of eight CP Pistons BRS forged pistons, specifically made for Big Block Ford 521 applications. These pistons are designed for use with 460 iron cylinder heads and feature a bore size of 4.390 inches, with an additional 0.030 inches of undersize machining. Because these are made to order, they cannot be canceled once the order is placed.

CP Pistons is known for building well-made internal engine components, and this set is no exception. These BRS series pistons are forged from high-strength aluminum alloy, which offers a solid balance of durability and weight savings crucial for high-performance Big Block Ford engines. The design focuses on providing reliable performance under demanding conditions, ensuring consistent power delivery and longevity for your engine build. The 0.030 inch undersize specification is important for engine builders who may be re-boring cylinders to clean them up or to achieve a specific clearance. This set is intended for use with 460 iron heads, which is a common configuration for these engines.

When building a high-performance engine like a Big Block Ford, the quality of internal components like pistons is paramount. These CP Pistons are a popular choice for builders looking for a strong, reliable piston that can handle the stresses of a powerful engine. Remember that these pistons are made to order, so please allow for production time. Also, note that this part is not CARB approved and cannot be shipped to California.