Piston Kit 94,94Mm 23379APiston Kit (Forged Replica)Pro Replica Forged piston in original OE form All pistons are heat treated with a T 5 hardening and tempering cycle All piston skirts are coated with a high tech Molybdenum Disulphite coating for faster break in time and increased piston life Forged pistons are forged from 2618 aluminum for superior strength and durability Forged Replica pistons are forged OE replacements Replica pistons and all rings are OEM replacements