These cylinder head sets feature the original contour castings but are designed for use with the later style O-ring intake manifold and Shovelhead style cylinders. They come with cast iron valve guides with valve stem seals, Panhead exhaust valves, Shovelhead intake valves for improved breathing and take 1975-1984 Shovelhead long reach spark plugs. These heads have provisions for overhead oil lines as standard on 1963-1965 Panhead models. The top oiler fitting holes come plugged-off with 1/8” NPT pipe plugs. Heads are fully assembled with valves, springs and collars and ready to install. Order original late style O-ring type intake manifold, Shovelhead cylinders and spark plugs, rocker arm studs, dowel pins, and top motor mount studs separately.