Supertech 81mm Bore Piston Rings - 1 x 2.9 / 1.2 x 3.40 / 2.0 x 2.4mm High Performance Gas Nitrided

These are Supertech high-performance piston rings designed for an 81mm bore. The ring set features specific dimensions: 1 x 2.9mm for the top ring, 1.2 x 3.40mm for the second ring, and 2.0 x 2.4mm for the oil ring. They are gas nitrided, a process that hardens the surface to resist wear and improve longevity, making them a solid choice for performance gas engines.

The gas nitriding process creates a tough outer layer on the rings, which helps them withstand the high temperatures and pressures found in performance applications. This improved durability means the rings can maintain a good seal between the piston and cylinder wall for longer, contributing to consistent engine performance. Proper ring seal is crucial for efficient combustion, oil control, and overall engine health.

When rebuilding an engine, selecting the right piston rings is important for ensuring the longevity and performance of your build. These Supertech rings are a well-built option for those looking for enhanced durability in their gas engine.