S&S CYCLE 107" Big Bore Cylinder Kit for Twin-Cam

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.  NOTE: Will fit Twin Cooled motors. Not for use with S&S 79cc heads