HARLEY 3-5/8 inch Cylinder Set Fits 1966-1984 FL, 1971-1984 FX, 1979-1983 FLT, 1982-1983 FXR,

Cylinders are stock height. For installation of 3-5/8 inch cylinders after spigot holes have been enlarged. (See diagram for photos.) *NOTE: 3-5/8 inch cylinders are drilled to use with 4-1/2 inch and 4-1/4 inch stroke. Will require break in as suggested in the shop manual. These are cylinders only. Order pistons and rings separately. These cylinders will require crankcase cylinder spigot holes to be bored out to 3.8750 inch. Disassmbly of engine is required to install these cylinders. NOTE: The finished bore size should be 3.8750 inch to fit 3-5/8 cylinders. *NOTE: All cast iron cylinders have same piston to wall clearance .0025 -.003. FITS HARLEY: 1966-1984 FL, 1971-1984 FX, 1979-1983 FLT, 1982-1983 FXR,