CP Piston Bullet Race Series Big Block Ford 521 Head: 460 Iron Bore : 4.390 Set Of 8

These CP Pistons Bullet Race Series pistons are machined from a high-strength aluminum alloy, specifically chosen for their ability to withstand the extreme pressures and temperatures found in high-performance Big Block Ford engines. Designed for use with 460 iron heads, this set is built for the 521 cubic inch displacement, featuring a 4.390-inch bore. The 0.030-inch undersize specification means these pistons are intended for engines that have been bored out to this specific dimension, ensuring a precise fit and optimal compression for maximum power output.

The Bullet Race Series is CP Pistons' popular line for serious engine builders. They incorporate advanced forging techniques and internal designs to reduce weight without sacrificing strength. This means less stress on your rotating assembly and improved engine response. Each piston in this set of eight is carefully crafted to meet tight tolerances, which is crucial for consistent cylinder sealing and efficient combustion. This attention to detail translates directly into reliable performance when you're pushing your engine hard.

When rebuilding or upgrading your Big Block Ford 460, choosing the right pistons is critical for longevity and power. This set is a solid option for those looking to build a powerful and durable engine. Remember that these pistons are 0.030 inches undersize, so ensure your block has been machined to match this specification. Due to emissions regulations, this part cannot be shipped to California.