The heads are good and somewhat sought after by boaters. They are a higher compression head than the D3VE (which were used in everything post 1972). They also flow better since they lack the exhaust hump that the D3VE's have. (This is stock, and without porting).
The heads are from a 1971 or older motor.
The rest of the parts are gonna need someone with a lot more info on fords than i have absorbed in my previous 4 months owning a BBF
Happy boating!