Supertech 79.5mm Bore Piston Rings - 1x2.9 / 1.2x3.40 / 2.8x3.10mm High Performance Gas Nitrided

These are Supertech high performance piston rings designed for a 79.5mm bore. They feature a gas nitrided finish, which is a surface hardening process that makes the rings more durable and resistant to wear. This updated design includes specific ring groove dimensions: 1x2.9mm for the top ring, 1.2x3.40mm for the second ring, and 2.8x3.10mm for the oil ring.

The gas nitriding process helps these rings stand up better to the stresses of performance engines, offering improved longevity compared to standard rings. The precise dimensions ensure a proper seal within the cylinder bore, which is critical for maintaining compression and preventing oil from entering the combustion chamber. This set is a solid option for engine rebuilds where durability and a good seal are important.