V-Twin 10-1139 - Panhead Cylinder Heads 3-5/8" Big Bore

V-Twin Motor Shop Ready single plug type Panheads are assembled and are ready to install.
Heads are assembled with cast iron guides valve stem seals nitrated valves Shovelhead intake Panhead Exhaust and stock style springs and retainers. Features Shovelhead exhaust pipe flange and intake ports accept Shovelhead o-ring type manifolds. Panhead features external oiler for Big Bore applications with up to .550 lift cam. These heads also accept 3-5/8" Big Bore Shovelhead cylinders with 98.6mm cylinders flange. Top oiler holes have a 1/8" National Pipe Thread. Pipe plugs are installed with 1/8" National Pipe Thread.
Fits Vtwins:
FL 1963-1965

Tech Note:

may require outside oiling