Clymer Mercruiser Stern Drive Shop Manual
1964-1985 ( also includes 1986-1987 TR and TRS models)
Connecting rod cap nuts 11/32-24 33 ft.lb.
3/8-24 40 ft.lb.
Main bearing caps 65 ft.lb.
Brandon has the same book that i got these specs from, and I suggest if he doesn't mind looking them up to confirm...
sorry to hear about the rod:(