CP Piston Bullet Race Series Big Block Chevy 4.280 Bore 4.250 Stroke 6.385 Rod Set Of 8

CP Pistons is well-known for making serious performance engine components, and this Bullet Race Series piston set for Big Block Chevy engines is a prime example of their work. If you're building a high-performance Big Block Chevy, these pistons are designed to handle the demands of a race application. They feature a 4.280-inch bore and are designed to work with a 4.250-inch stroke crankshaft, using a 6.385-inch connecting rod. This set includes eight pistons, ready for your next engine build.

These pistons are forged, which means they start as a solid block of aluminum that's heated and hammered into shape. This process creates a much stronger and more durable piston than cast aluminum, making them ideal for high-compression, high-horsepower engines where detonation or excessive cylinder pressures are a concern. The Bullet Race Series designation indicates these are built for competition, offering a robust solution for builders looking for reliable performance under extreme conditions. The 0.030 inch undersize means these pistons are 0.030 inches larger in diameter than the standard bore size, which is common when re-boring an engine block to clean up cylinder walls or achieve a specific displacement.

When building a performance engine, attention to detail is key. These pistons are a critical component for achieving your power goals. Remember that this part is not CARB approved and cannot be shipped to California. Always consult your engine builder or a qualified professional for specific installation requirements and recommendations for your application.