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JE Pistons forged piston kit for Subaru EJ257 with an 83mm stroke and 99.5mm bore, 8.5:1 compression, supplied as a set of four. Forged from 2618 aluminum and finished in the USA, these pistons use JE’s Forged Side Relief forging to minimize friction and save weight. Accumulator grooves and skirt coating (application dependent) improve ring seal. Kit includes wrist pins, locks and JE Pro Seal rings for high-demand applications.
JE Pistons SUB EJ257 83mm STR 99.5mm Bore CR 8.5 KIT Set of 4 Pistons
