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88mm Aftermarket Flat-top Piston for stock bore GX390s.
88mm Aftermarket Flat-top Piston for bore GX390s only. Cut.060 for use with 4.510" Rod.
90mm Aftermarket Flat-top Piston for bore GX390s only. Cut.060 for use with 4.510" Rod.
88mm Aftermarket Flat-top Piston for bore GX390s only.