The piston is heat-treated with a T-5 hardening and tempering cycle. The piston skirt is coated with a high-tech Molybdenum Disulphite coating for faster break in time and increased piston life. Cast piston kit is gravity-cast aluminum alloy (not forged) with 18% silicone content. Piston kit includes piston, rings, wrist pin and circlips.
