4-Door with 340 from the factory?

I worked at a full service gas station as a kid. I still remember a 66 Belvedere 4 door (family car, bench seats) from a nearby town that stopped in for gas. I was surprised it had a 361 - don’t remember if it had a 4 bbl. Then I noticed it had a 4spd. Only factory 4 door, 4spd grocery getter I ever saw.