This CP piston and ring set is specified for the Mitsubishi 4G63 2G with an 86.0mm bore at +1.0mm, matching the compression ratios used in certain Eclipse and Evo builds. The kit provides correctly sized pistons and rings for overbored engines, supporting rebuilds that require the listed bore and compression specifications for these 4G63 variants.
CP Piston & Ring Set for 4G63 2G-Bore (86.0rmm)-Size (+1.0)-CR (8.5 Eclipse / 9.0 Evo 8/9)