1937 Knucklehead Cylinder Head Set Assembly Black(SET)

Assembled cylinder head set is an accurately reproduced black finish front and rear heads for 19391940 EL 61 KnuckleheadsbrbrIncludes black head set valves springs collars parkerized lower covers parkerized upper covers rocker arms rocker boxes and intake manifold nipples completely assembled and ready to be installed NOTE Heads include feature detailed casting hallmarks as original black painted NOTE Accepts large 138 hex Doering 3 spark plug set