Supertech 81.5mm Bore Piston Rings - 1x3.10 / 1.2x3.40 / 2.8x3.10mm High Performance Gas Nitrided

When you're rebuilding an 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 an 81.5mm bore, helping to restore compression and control oil consumption in your engine.

The nitriding process hardens the surface of the rings, making them more resistant to wear and heat. This means they can stand up to the demands of a performance engine rebuild. The specific ring groove dimensions are 1x3.10mm for the top ring, 1.2x3.40mm for the second ring, and 2.8x3.10mm for the oil control ring, ensuring a precise fit in the corresponding piston grooves.