The Harley-Davidson 'Electra Glide' was launched with a 'Panhead' Engine in 1965.
In 66 Harley introduce the 'Shovelhead' engine to replace the Panhead.
Goin on that and my info, yours should be a 'Shovel'. Ignore me, just a bit of history
This looks like a mess in the making......
If you sdon't have signed paper work you better get it before you sell that bike...that could be a fuse to some big fireworks.