They never made an SS 4 door. Closest they came was in 73 when you could get an SS wagon. The only "muscle car" that I think ever came in a 4 door version was a handful of 64 Olds 442's. There were also suposedly a few 4 door Hemi's, but they were just base models, so they don't count.
Chevelles were offered in the 4-door hardtop bodystyle from 1966 - 1972. No SS 4-door Chevelles were made but you could specify an L79 in '67 & '68 (325 horsepower 327 c.i.d.) as well as a Turbo-Jet 400 (402 c.i.d.) from '70 - '72. 4-speed trannies were offered on all 4 doors and with most V8s during those years. BTW the 1st Impala SS in 1961 was offered in 4-door versions (both hardtop & post), at least theoretically.
Didn't Tom Parsons order a Concours Estate wagon new in '71 with a 402, 4-speed & cowl induction? Those first 2 were stock options; Tom must have used some 'persuasion' to get the C.I. hood.
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