Supertech 77mm Bore Piston Rings - 1x3.1 / 1.2x3.40 / 2.8x3.10mm High Performance Gas Nitrided

These Supertech piston rings feature a gas nitrided surface treatment, a process that hardens the ring's outer layer. This makes them more resistant to wear and scuffing, which is crucial for maintaining a good seal between the piston and cylinder wall. The specific ring groove dimensions are 1x3.1mm for the top ring, 1.2x3.40mm for the second ring, and 2.8x3.10mm for the oil ring, designed to fit pistons with a 77mm bore.

The nitriding process creates a tough, durable surface that can handle the heat and friction found in high-performance engines. This helps ensure consistent compression and efficient oil control over the life of the engine. When rebuilding or refreshing an engine, using well-made piston rings like these is key to achieving proper cylinder sealing and optimal performance.