Supertech 78mm Bore Piston Rings - 1x3.1 / 1.2x3.40 / 2.8x3.10mm High Performance Gas Nitrided

When you're rebuilding the top end of your engine and need to ensure a solid seal between the piston and cylinder wall, a good set of piston rings is crucial. These high-performance gas nitrided rings from Supertech are designed for a 78mm bore, helping to maintain proper compression and oil control. The nitriding process hardens the surface of the rings, making them more resistant to wear and heat.

This set features a specific ring groove sizing: the top ring is 1x3.1mm, the second ring is 1.2x3.40mm, and the oil ring is 2.8x3.10mm. This precise sizing is important for proper function within the piston grooves. Gas nitriding is a popular treatment for piston rings because it creates a durable surface that can handle the stresses of combustion, contributing to a longer-lasting engine rebuild.