i'm guessing its probably a 68 charger with a motor swap from a newer charger. i like mopar alot, but not too knowledgeable on their cars and such, but i really dont think there was anything such as srt used back then. just R/T, or road and track. instead of street road and track.
yeah your post isn't very informative. Is that a for-sale ad?
Like someon said, it is probably a 68 Charger with a 6.1 Hemi. A LOT of people do that swap. It bolts right in to a smallblock K member, you can get TTI swap headers and a Mopar PCM to run it, and your good to go. Or what more people do is swap the 5.7 since it's easier to find. A 5.7 with a 6.1 cam, exhaust, and a cold air is a 400+ horsepower motor all day. I think that 6.1 cam is like $80 at the dealer, it's some hilariously low price.