1937 Harley Davidson EL Knucklehead Cylinder Head Set- Bare

Bare 1937-1939 Harley Davidson Knucklehead head set features OEM production numbers, mc sign, small intake port, primer black plugs, manifold nipples and are painted with black heat paint.

Exact for 1937 only, but can be used on 1937-1939 61" EL models. Either type of valve spring cover can be installed, either cup type of full cover and top set. Accepts "baby butt" intake manifold, springs, valves, collars, spring cups and top tins included and assembled.

*NOTE: Valve seats are installed but not cut. Heads also feature detailed casting hallmarks, as original, black painted.