106-5536 Forged 3-5/8" big bore piston kit. +.010"

This S&S forged big bore piston kit is designed for 1936 to 1984 Big Twin engines that have been opened up to a 3-5/8 inch bore. These pistons are +.010 over and are compatible with flywheel strokes ranging from 4-1/4 to 5 inches, allowing for displacements from 88 to 103 cubic inches. The forged construction and advanced skirt profile are engineered for high-stress applications while maintaining quiet operation. With a 30cc dome volume, these pistons provide reliable compression across various cylinder lengths. Sold as a set, the kit includes the pistons, wrist pins, clips, and rings. It is an essential choice for mechanics refreshing a big bore Shovelhead or Knucklehead engine that requires a slight overbore for a perfect cylinder wall finish.