CP Piston & Ring Set for Acura B18C5 - Bore (81.5mm) - Size (+0.5mm) - Compression Ratio (11.5)

This is a set of forged pistons and rings from CP Pistons, specifically made for the 1997-1998 and 2000-2001 Acura Integra with the B18C5 engine. If you're rebuilding the engine in one of these Integras, especially if you're aiming for more performance or replacing heavily worn components, these pistons are a solid choice. They are designed to handle increased stress and heat compared to stock cast pistons.

These pistons are forged from high-strength aluminum, which makes them lighter and much more durable than cast pistons. They come at an 81.5mm bore size, which is a +0.5mm oversize from the factory specification. This is useful if your engine block needs to be bored out to clean up cylinder walls or to achieve a specific displacement. The compression ratio is set at 11.5:1, which is a notable increase over stock, meaning you'll get more power out of each combustion cycle, assuming you're using fuel appropriate for this compression level. The set includes the necessary rings to complete the piston assembly.

When installing these, remember that they are an oversize part, so your engine block will need to be machined to the correct 81.5mm bore size. It's also important to ensure your engine management system is tuned to take advantage of the increased compression and potentially altered airflow characteristics. Due to their performance-oriented design and increased compression, these pistons are not CARB approved and cannot be shipped to California.