Wrong! My first car was a 1966 Rambler American 2 door hardtop. It had a 232 slant 6 (from the factory). When that engine blew we installed another 232 slant 6 from the factory (from a junk 66 American 2 door hardtop) right in. I am not an enthusiast or any of that, but this I know as fact!
The 1966 Rambler American 2 door hardtop DID come with a 232 slant 6 from the factory; end of story.
The Rambler was way ahead of its time. I own a 1966 Rambler American 2 door hardtop, and yes it is a straight six.
I purchased new, and still own a 1966 Rambler American 440 2-Door Hardtop, 3-speed with O/D. It has a 199 6-cyl engine. It needs a lot of tender loving care.
I had great luck with my 66 Ambassador 327 V8 that my grandparents gave me to drive to college. A wagon, but it was cool. I drove it until 1974, no issues at all.
I also own a 2dr HT, and it has a 232 inline 6, not a slant, and my father has a Convertible 232 inline.
Wrong 2x. A slant-6 has the cylinders canted, hence the, uh, name. A straight six like the Rambler 232 has the cylinders vertical in the block, not slanted. End of story.
I used to work for an American Motors dealer, and can't recall ever seeing a slant 6 motor. Worked there in the mid 60s and thru the 70s after I got out of the service.