128″ Big Bore Kit for the 114″ M8 Harley models. Highlighted fins.
Fits: 2017-2019 114″ M-Eight Motors
- Bolt-on kit, the largest cylinder bore possible without required machining of the crankcases
- 4.250″ bore, 4.500″ stroke
- 11:1 forged pistons with rings, pins and clips
- All gaskets and hardware required for installation included
- Wrinkle black finish
- Made in the U.S.A.