Piston Ring Set 4.155 Nitride 1.2 1.5 3.0mm

The Piston Ring Set 4.155 Nitride 1.2 1.5 3.0mm is specifically engineered for high-performance applications, particularly in 4.155-inch bore 8-cylinder engines. This set is ideal for engine builders looking to enhance sealing and durability in competitive racing environments.

Constructed from high-strength steel with a nitride coating, these piston rings provide superior hardness and reduced friction compared to traditional materials. The set includes a 1.2mm top ring, a 1.5mm second ring, and a 3.0mm oil ring, all designed for a file-fit approach that allows for precise end-gap customization to optimize sealing.

Professional racers and performance enthusiasts will appreciate the benefits of these piston rings, which are tailored for specific heat ranges and fuel types. This kit requires professional measurement and filing during installation to ensure peak efficiency and long-term reliability in high-output street engines or drag strip powerhouses.