S&S Cycle 910-0733 M8 Big Bore Kit, 117 to 128, Black Granite with Highlighting, 4.25 bore x 4.5 stroke
- The Big Bore kit yields excellent results with stock cylinder heads
- Easy installation: no need to bore or split existing cases, just swap the cylinders (unless otherwise noted)
- Cylinders are constructed from premium aluminum castings with cast-in iron liners
- Kits include cylinders, pistons, rings and gaskets (head, base and exhaust)
- Black or silver powder-coat finish
- Made in the U.S.A.
- This project requires a skilled technician. It is the responsibility of the person assembling the parts to check all clearances and assembly specifications.