Piston Ring Set 4.060 Moly 1/16 1/16 3/16

The Piston Ring Set 4.060 Moly 1/16 1/16 3/16 is engineered for high-performance engine builds and rebuild applications where durability and precision sealing matter most. Built by MAHLE ORIGINAL/CLEVITE—a name trusted by professional machinists and serious engine builders—this ring set addresses the critical function of compression sealing, blow-by control, and oil management in modified or performance engines. Whether you're refreshing a performance block or building from bare aluminum, the correct piston ring specification directly impacts cylinder pressure retention, power output, and long-term engine reliability.

This piston ring set features moly (molybdenum) coating on the compression rings—a proven technology that reduces friction, improves ring-to-cylinder wall conformance, and extends ring life under high heat and load conditions. The 1/16 1/16 3/16 ring thickness configuration (first compression, second compression, and oil control rings respectively) is calibrated for 4.060-inch bore diameter applications, ensuring proper end-gap clearance and radial tension. Moly-faced rings perform exceptionally in fresh bores, break in faster, and maintain consistent blow-by control across extended RPM ranges—critical for turbocharged, supercharged, or naturally aspirated performance engines running elevated boost or internal modifications.

This piston ring set is ideal for engine builders tackling 4.060-inch bore blocks—common in Big Block Chevy, Gen III LS, and other performance platforms where overbore stroker builds demand precision OEM-quality components. Proper installation requires accurate piston-to-wall clearance measurement, correct ring end-gap spacing, and careful honing to specification; improper fitment will compromise sealing and reduce engine durability. Always reference your specific engine block's OEM or machine shop specifications before ordering to confirm bore diameter and ring thickness compatibility with your particular application.