CP Piston & Ring Set for Acura/Honda K20A/A2/A3 - Bore (87mm) - Size (+1.0mm) - Compression Ratio (F

If you're rebuilding the engine in your 2002-2006 Acura RSX, especially if you're aiming for more power or need to address worn cylinders, a solid set of pistons is crucial. This forged piston and ring set from CP Pistons is built for the K20A, K20A2, and K20A3 engines, offering a robust solution for your rebuild project. These pistons are sized at 87mm with a +1.0mm overbore, meaning they're designed to replace stock pistons that have been bored out to accommodate a larger diameter, often necessary when machining cylinders to true them up or increase displacement.

CP Pistons are well-known for their strength and reliability, especially in performance applications. These are forged pistons, which means they start as a solid block of aluminum that's heated and hammered into shape under immense pressure. This forging process creates a much denser, stronger, and more durable piston than cast aluminum ones, making them far more resistant to the extreme pressures and temperatures found in a high-performance or rebuilt engine. The set includes the necessary rings, simplifying your parts list and ensuring you have compatible components ready for installation. The specific compression ratio is listed as 'F' in the product details, which typically indicates a forged piston designed for custom tuning and performance builds where specific compression targets are met through other engine modifications.

When undertaking an engine rebuild of this caliber, it's important to ensure all components are properly machined and balanced. This set is designed as a direct fit for the specified RSX models, but always consult your machine shop and the manufacturer's installation guidelines to confirm all necessary clearances and procedures. Remember, this part cannot be shipped to California due to CARB regulations.