See more: ENGINE GROUP - CYLINDERS + PARTS
124" Cylinder and Piston KitKit includes fitted forged pistons, pins, clips, rings, cylinders, head gaskets, base, and exhaust gaskets 10.9cc dished pistons; 10.6:1 compression ratio w/stock 85cc cylinder heads For use with stock heads or S&S heads with stock bolt pattern 4.625" stroke Made in the U.S.A. Requires crankcase machining.