Piston Ring Set 4.165 Moly 1/16 1/16 3/16

The MAHLE ORIGINAL Piston Ring Set 4.165 Moly 1/16 1/16 3/16 is specifically engineered for high-performance small-block engines that require precision sealing and durability under extreme combustion pressures. This ring set is ideal for builders and mechanics focused on rebuilding small-block engines and race platforms where compression integrity is crucial for power delivery and oil control.

Designed with a 4.165-inch bore diameter, this piston ring set features a moly (molybdenum) coating on the compression rings, providing superior wear resistance and scuff protection during break-in and sustained operation. The configuration of 1/16 for the top ring, 1/16 for the second ring, and 3/16 for the oil ring represents a proven design that balances compression sealing with oil control efficiency, ensuring optimal performance.

Engine rebuilders, performance shops, and serious enthusiasts will find this piston ring set essential for small-block engine builds where OEM or OEM-equivalent components are specified. Proper installation requires careful measurement of the ring end-gap for your specific bore, ensuring a perfect fit for enhanced engine longevity.