- Kit 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.