A friend of mine over seas is looking at buying this impala. It's advertised as a SS. I don't know anything about these cars. Did they ever make a SS with a three on the tree? Says it has a 350 engine.
I have read that you could get the SS package on anything back then, 2 door, wagon, hardtop, sedan, 8 cyl or 6 cyl, didn't matter. I saw a SS Chevelle a while back with a bench seat and auto on the column , supposedly a factory car, so I'd say if it is a 3 on the tree SS, it's probably a rare bird, but not impossible.
Not likely. In '67, the 350 was not available in the Impala, nor three on the tree to my knowledge. (I owned a '67 Impala SS for 22 years and never saw one without buckets, console and floor shift, regardless the motor/trans combo.)
I'd have your friend check the body ID plate on the passenger's side firewall. It should tell the tale, though the info may only relate to cars built on this continent. (Model 167-16887 depicts SS sports coupe, any number otherwise is not an SS, besides the convertible which is model 167-16867.)
All that said, I'd be interested in what your friend finds... pictures, numbers, anything at all...
The 350 was probably swapped in later, since they didn't come out with them until what, 1970? And then again, to some people, every first gen Chevy V8 is a 350 because they all pretty much look alike!