Moly Piston Ring Set LS 6.2L 4.065 Bore

The Moly Piston Ring Set LS 6.2L 4.065 Bore from Sealed Power is engineered for high-performance LS engine builds requiring premium ring durability and blowby control. Designed as a direct drop-in replacement for LS6.2L applications with 4.065-inch bore diameter, this ring set serves builders, enthusiasts, and machine shops who demand consistent compression sealing and extended ring life in naturally aspirated or lightly boosted platforms.

This eight-cylinder piston ring kit features molybdenum-coated compression rings paired with a steel oil control ring, delivering superior wear resistance and reduced friction at ring faces. The 1.5 x 1.5 x 2.5 mm ring thickness specification and standard tension design optimize oil film retention while minimizing blow-by under boost or sustained RPM. Sealed Power's moly coating protects against scuff during cold starts and rapid load transitions, critical for turbocharged or supercharged builds where ring contact pressures spike dramatically.

Technicians and engine builders working on LS6.2L stroker or refresh builds will find this ring set indispensable for maintaining factory-spec compression and oil control in street, bracket racing, or weekend performance applications. Installation is straightforward—no machine work required when bore diameter matches the 4.065-inch specification. The kit arrives ready to install, making it ideal for honing verification and final assembly stages of short-block preparation.