They will fit, with a teeny weeny little bit of work.
I put a '70 4 core (extra thick) in my old wagon. It's not quite as wide as my original 91 and doesn't have the oil cooler. I had to drill a bigger drain hole in the cross brace and trim the shroud. Otherwise, it fits perfectly and you couldn't tell it wasn't stock. I now run 165 all day long, unless I'm towing. In either case, it's
way too cool!