According to Shop Dope information from this period, the first heads had no baffling on the intake side for oil control, and too much oil would get sucked through the intake guide and cause the bike to smoke. The solution was to have the dealer or factory install a small plug into the oil valley to keep the intake from over-oiling and causing smoke. This head apparently was removed early in its life and returned to the factory for the oiling modification and never mounted again. There is still a metal factory ID tag on this head. Both heads have seats and guides installed and all rocker studs are accounted for.
Fins are perfect as are all threads.
You need these for your 100 point restoration.