Did they ever produce a slant 6 4 speed with a console in 1966?

I am wondering how butchered this car is. the body is stock. It looks like the original engine. The original buckets have been removed, but are available. It has a console and a 4 speed. It is a GT.
I'm sure one could have ordered a slant six with a 4 speed. There are people on this site who are always looking for a 4 speed bell housing
for a slant six. The standard engine for a 66 Dart GT would have been a 225 slant six.