Piston Rings - 107" Motor - 3.937" Standard - M8

These rings match OEM design with exception of increased oil ring tension to provide better oil control. The top/upper compression ring is a steel ring coated with PVD (Physical Vapor Deposition) process. The intermediate/mid ring is ductile iron, napier profile design. The oil control ring is a three-piece design with increased tension for improved oil control. Made in the USA. Includes enough rings for two pistons..