Mahle Rings Performance Gas Nitride Steel 4.100 x .043 .157 RW Plain Ring Set

If you're rebuilding the top end of your engine, getting the right piston rings is crucial for sealing combustion and managing oil. This Mahle OE ring set is designed for a 4.100 inch bore, with ring thicknesses of .043 inches for the top and second rings, and .157 inches for the oil ring. The steel construction with a nitride finish means these rings are built to last and handle the heat and pressure inside your cylinders.

Mahle is a well-known name in engine components, and this set is made to meet the demands of a performance gas engine. The nitride treatment on the steel rings helps them resist wear and maintain a good seal against the cylinder wall, which is important for both power and oil control. These are a plain ring set, meaning they don't have special coatings beyond the nitride finish, offering a solid option for many engine builds.