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The Smeding pistons were designed for performance and fit. Smeding designed a tight-fitting high-silicone hypereutectic aluminum piston that features duro- hield graphite-coated skirts for reduced friction. They also have a zero deck height for maximum combustion quench and full-floating wrist pins. Not to mention the pistons are outfitted with a moly-faced ductile upper ring, a reversed-taper beveled second ring, and a light-tension threepiece oil ring.