124″ Big Bore Cylinder Kit – Twin Cam – Black

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; Kit includes cylinders, pistons, rings and gaskets (head, base and exhaust); Made in the U.S.A.; Project requires a skilled technician. It is the responsibility of the person assembling the parts to check all clearances and assembly specifications.