Piston Ring Set 4.505 Bore 1.5 1.5 3.0mm

The Piston Ring Set 4.505 Bore 1.5 1.5 3.0mm by MAHLE PISTONS is a performance-grade ring kit engineered for high-output eight-cylinder engines demanding precision and durability. These rings are essential for sealing combustion pressure, controlling oil consumption, and maintaining proper gas blow-by in competition and heavy-duty applications. Designed for builders and performance enthusiasts who require OEM-quality components with superior heat resistance and ring stability, this file-fit set delivers the reliability needed in extreme operating conditions.

Manufactured from ductile iron with plasma moly coating, the Piston Ring Set 4.505 Bore features a 1.5mm top ring, 1.5mm second ring, and 3.0mm oil ring configuration optimized for standard tension and maximum ring life. The plasma moly surface treatment reduces friction and extends ring wear life while providing superior scuff resistance during initial break-in and sustained high-RPM operation. File-fit construction requires honing to exact bore specifications, ensuring optimal ring gap and seating for peak compression and seal integrity in 4.505-inch bore applications.

This eight-cylinder ring set is ideal for engine builders, performance shops, and restoration professionals working on big-block and stroker applications where bore diameter reaches 4.505 inches. Proper installation requires precise ring gap filing and careful bore honing to manufacturer tolerances; compatibility with specific engine platforms depends on piston crown design and ring groove dimensions. MAHLE's heritage in OEM engine components ensures this kit meets stringent quality standards for both naturally aspirated and forced-induction powerplants.