S&S Cycle – Black Powdercoat 117″ Big Bore Kit fits ’07-’17 Twin Cam Engines (4.125″ Bore, 4⅜” Stroke, 10.5:1 Comp. W/ Stock Heads)
This Big Bore Kit produces outstanding outcomes with stock cylinder heads. It comes complete with cylinders, pistons, rings and gaskets (head, base and exhaust).
Features
- This kit will require that the case be bored to accept the larger cylinders
- Cylinders are constructed from premium aluminum castings with cast-in iron liners
- Made in the U.S.A.
NOTES: This project requires a skilled technician. It is the responsibility of the person assembling the parts to check all clearances and assembly specifications.






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