CP Piston & Ring for Mitsubishi 2nd Gen 4G63T - Bore (86.0mm) - Size (+1.0mm) - CR (9.5:1) - SINGLE

This listing is for a single CP Pistons piston and ring set designed for the Mitsubishi 2nd Gen 4G63T engine. You get one forged piston, a set of rings to match, and the necessary wrist pin and clips to install it. This piston is built to a 9.5:1 compression ratio and features an 86.0mm bore size, which is 1.0mm over the stock dimension. This is a common choice when rebuilding an engine that has been bored out to correct for wear or to increase displacement.

CP Pistons are well-built, using forged aluminum to create a strong and durable piston that can handle the demands of performance applications. The forged process creates a denser, more consistent grain structure compared to cast pistons, making them more resistant to detonation and mechanical stress. This particular piston is designed for a 1.0mm overbore, meaning the cylinder walls have been machined to this larger diameter. Ensure your machine shop has prepared the cylinders to this exact specification before installation.