CP Piston & Ring for Chevrolet Small Block - Bore (4.040in) - Rod (5.700in) - CR (10.5:1) - Set of 8

Forged from 2618-T61 aluminum, these CP Pistons are built for serious performance in your Chevrolet Small Block engine. The 4.040-inch bore size is a common upgrade for many small block builds, and the 5.700-inch rod length is designed to work with a variety of crankshafts and connecting rods. This set is engineered to achieve a 10.5:1 compression ratio, which is a solid choice for naturally aspirated builds running on premium pump gas, offering a good balance between power and drivability.

CP Pistons are well-known for their robust construction and attention to detail. Each piston in this set is forged, meaning the aluminum is heated and shaped under extreme pressure, creating a stronger and more durable component than cast pistons. This process results in a piston that can better withstand the higher cylinder pressures and temperatures found in performance applications. The set includes high-quality piston rings specifically matched to the piston design and bore size, ensuring a proper seal for optimal performance and longevity. This is a complete set of 8 pistons, ready for installation in your V8 engine.

When installing these pistons, it's important to follow the manufacturer's recommended clearances and lubrication procedures. Proper balancing of the rotating assembly is also crucial for smooth operation and to prevent premature wear. While these pistons are designed for pump gas, always consult with your engine builder or tuner to confirm fuel requirements and optimal tuning strategies for your specific combination. Please note that this part is not CARB approved and cannot be shipped to California.