Engineered, forged, and machined in the USA from 2618 aluminum for tensile strength needed in performance racing and power adder applicationsDedicated forgings allow for optimized, engine-specific strutted design to maximize strength-to-weight characteristicsArmorGlide? skirt coating reduces operating friction and noise while also reducing skirt and cylinder wearHorizontal slot oiling in pin bores maintain optimal wrist pin and small-end lubrication, critical for long service lifeAccumulator groove helps maintain consistent ring seal and powerEach part number includes premium rings ? no need for additional sourcing