94-1211X 3-5/8 bore piston rings. +.010"

These S&S Cycle Chrome Moly replacement rings are the gold standard for big bore Evolution and pre-Evolution engines. This set is sold as a set for two cylinders and is designed for a 3-5/8 inch bore with a .010 inch oversize. They are compatible with S&S big bore kits as well as other manufacturers like Axtell, provided they use 1/16 inch compression rings and 5/32 inch oil rings. S&S recommends a ring gap of .004 inches per inch of cylinder diameter for street applications to prevent seizure while maintaining efficiency. These rings are engineered to handle the increased demands of a high-displacement motor, ensuring your big bore kit continues to perform at its peak.