94-1400X 4-1/8" bore piston rings set. Std.

This standard-size S&S chrome-moly piston ring set is designed for the massive 4-1/8 inch bore Super Sidewinder Plus engines, covering both Evolution and Twin Cam styles. Sold as a set for two cylinders, these rings are essential for a proper seal in high-displacement builds. Achieving the correct compression ring gap is paramount; a gap that is too tight can lead to engine seizure, while one too wide results in lost power and reduced efficiency. For street applications, S&S suggests a gap of .004 inches per inch of bore diameter. These rings ensure your SSW+ engine continues to deliver maximum performance and reliability on every ride.