CP Piston & Ring for 4G63 2G-Bore (86.0rmm)-Size (+1.0)-CR (8.5 Eclipse / 9.0 Evo 8/9)-SINGLE PISTON

This listing is for a single CP Pistons forged piston, part number SC7230-1, designed for the 4G63 engine. It includes the piston itself and a set of rings to match. This specific piston is sized at 86.0mm with a +1.0mm overbore, and it offers a compression ratio of 8.5:1 when used in an Eclipse or 9.0:1 when installed in an Evo 8 or 9. These pistons are built for performance applications where increased strength and reliability are needed over stock cast pistons.

CP Pistons are well-known for their forged construction, which makes them significantly stronger and more durable than cast pistons. This is crucial for engines that see higher performance demands, such as those with forced induction or higher RPM limits. The specific compression ratios offered allow tuners to achieve desired performance characteristics for either naturally aspirated or boosted setups. The +1.0mm overbore size is useful when rebuilding an engine that has already been bored out or to achieve a specific displacement.

Please note that this part is not CARB approved and cannot be shipped to California. Always refer to manufacturer documentation for precise installation procedures and compatibility details for your specific engine build.