CP Piston & Ring Set for Acura NSX C320A - Bore (90mm) - Size (STD) - CR (9.0) - Set of 6

If you're rebuilding the engine in your Acura NSX with the C320A engine, this set of six forged pistons and rings from CP Pistons is a solid option. These are standard bore pistons, meaning they're designed to fit a cylinder bore of exactly 90mm, which is the original factory size for your engine. The 9.0:1 compression ratio is also a direct match to the stock setup, making it a straightforward choice for a factory-spec rebuild or a mild performance build.

CP Pistons are well-known in the performance engine building world. These pistons are forged from high-strength aluminum, which is a stronger material than cast aluminum typically found in stock pistons. This makes them more durable and better able to handle increased cylinder pressures, whether from a turbocharger, supercharger, or just a more aggressive naturally aspirated tune. The set includes the necessary rings, which are crucial for proper sealing between the piston and cylinder wall, ensuring good compression and oil control.

Keep in mind that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures when rebuilding your engine.