M8 128 Big Bore Bolt On Cylinder Kit Black - V-Twin 11-1241 - Big Twin 2017-2023
This M8 engine design is made for displacement increases. Designed to fit on factory engine base without case boring. Cylinder has a black finish with macined fins. Converts 104 inch - 117 inch to 128 inch.
Kit includes precision fitted cylinders 11:1 compression forged pistons head and base gaskets. Fits on factory engine base without case boring.
Fitment:
| 2017-2023 | FLHR |
| 2017-2023 | FLHT |
| 2017-2023 | FLHX |
| 2017-2023 | FLST |
| 2017-2023 | FLT |
| 2017-2023 | FXST |