CP Piston Bullet Race Series Small Block Chevy 4.030 Bore 3.480 Stroke 5.700 Rod Set Of 8

If you're building a high-performance Small Block Chevy engine for racing or serious street use, a strong set of pistons is fundamental. This set from CP Pistons, part number BC1021-030, is designed for a 4.030 inch bore with a 3.480 inch stroke and uses a 5.700 inch rod. These are forged pistons, which means they are built from a solid block of aluminum alloy that's heated and hammered into shape under immense pressure. This process creates a much denser, stronger, and more durable piston than cast aluminum, making them ideal for the high cylinder pressures and temperatures found in performance applications.

The Bullet Race Series is CP Pistons' line of pistons built for demanding applications where reliability and performance are critical. They feature a specific dome/dish volume and valve reliefs designed to work with a variety of cylinder heads and camshaft profiles, helping you achieve optimal compression ratios and valve clearance. The included wrist pins are also robust, designed to handle the significant forces involved in high-RPM operation. This set includes eight pistons, enough for a complete V8 engine build.

When installing these pistons, ensure you have the correct ring set and that your cylinder walls are properly honed to match the piston skirt design and material. It's also crucial to verify piston-to-valve clearance with your specific cylinder head and camshaft combination. These pistons are intended for competition or off-road use and are not CARB approved, meaning they cannot be shipped to California.