This CP piston and ring set fits the Mitsubishi 4G63 2G with an 85.5mm bore at +0.5mm oversize and a compression ratio noted for Eclipse/Evo variants. The matched pistons and rings are intended for engine builds requiring this oversize specification, enabling proper clearances after cylinder machining in supported 4G63 applications.
CP Piston & Ring Set for 4G63 2G-Bore (85.5rmm)-Size (+0.5)-CR (8.5 Eclipse / 9.0 Evo 8/9)