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This CP forged piston and ring set is manufactured for first‑generation Mitsubishi 4G63 engines with an 85.5mm bore and +0.5mm oversize, supplying a matched piston and rings for an engine rebuild. Offered as a performance‑grade replacement, the set provides the basic components needed to restore compression and ring sealing after machining the block to the specified oversize. Verify bore and specifications before ordering.
CP Piston & Ring Set for Mitsubishi 1st Gen 4G63 - Bore (85.5mm) - Size (+0.5mm) - Compression Ratio
