HARLEY Replica 74 inch Knucklehead Cylinder Kit Black Fits 1941-1947 FL,

2022 New Production Replica 74 inch Knucklehead cylinder set with 5 fins and black finish features cast iron construction with original markings. Pre-fitted with standard cast 8.5:1 pistons and a genuine Hasting ring set. The rear cylinder has the original casting marks of MoCasCo on the left side inch2-86 inch. Cylinder castings are replicated after the post production of the 1974 Knucklehead pre-1950. *NOTE: See additional photos. Photos show cylinders installed on a V-Twin MFG replica Knucklehead engine. *NOTE: Replica cylinder is the later version of the original replacement cylinder of the late 1940's. *NOTE: All cast iron cylinders have same piston to wall clearance .0025 -.003. FITS HARLEY: 1941-1947 FL,