Rob, I personally have 15 366 cranks, several 303
cranks, and have worked on at least 5 366 engines.
The factory originally built enough parts for about 250 engines so there are enough parts to justify mentioning them vs a one off (set of 5)
aluminum block deal. Tom V.
ps I would bet money that Dick has cast less than 100 IA blocks so far and maybe less than 75.
