CP Piston Bullet Race Series Chevy LS7 4.155 Bore 4.000 Stroke 6.125 Rod 1.120 Set Of 8

If you're building a high-performance Chevy LS7 engine, getting the right pistons is crucial for handling the power and stress. These Bullet Race Series pistons from CP Pistons are forged from strong aluminum alloy, designed to withstand the demands of serious racing and performance applications. They feature a 4.155-inch bore, a 4.000-inch stroke, and are designed to work with a 6.125-inch connecting rod and a 1.120-inch wrist pin. This set includes all eight pistons needed for a complete engine build.

CP Pistons uses a forging process that creates a denser, stronger piston compared to cast or hypereutectic designs. This makes them ideal for boosted or high-compression builds where detonation or extreme cylinder pressures are a concern. The specific design of the Bullet Race Series aims for a balance of strength and weight, which is important for engine responsiveness and durability under extreme conditions. The included wrist pins are also built to handle the forces involved in high-RPM operation. Remember that these pistons are 0.030 inches over standard bore size, so ensure your block is machined to this specification.

When installing these pistons, it's important to have your engine block professionally bored and honed to the exact 4.155-inch dimension specified for these pistons. Proper ring gap setting and piston-to-wall clearance are critical for performance and longevity, so always refer to the manufacturer's detailed installation instructions. Please note that these pistons are not CARB approved and cannot be shipped to California.