94-1214X 3-5/8 bore piston rings. +.040"

For high-displacement builds that have seen some miles and require a .040 inch oversize, these S&S 3-5/8 inch bore piston rings are the ideal choice. Sold as a set for two cylinders, these Chrome Moly rings fit most S&S Evolution and pre-Evolution engines equipped with big bore kits. They are designed for pistons with 1.5mm compression rings and 4.2mm oil rings. Proper ring gapping is critical for engine longevity, and S&S recommends a gap of approximately .0145 inches for this bore size on street engines. These rings provide the durability and sealing performance required to keep a large-displacement V-twin running strong, whether you are using S&S or compatible Axtell cylinder kits.