The only thing that makes these cars ugly, is the federal bumpers, but I hear they have a kit to remove the spacers and move the bumpers where they belong. I've seen a few with the bumper mod, and it improves looks tremendously. They still aren't bringing $ here, I see people trying to push prices, but reality is, a really nice one is 3.5-5k, and I've seen nice ones sell for 2.8k, beaters bwtween 1.5-2k. Had a friend a couple years back got a great deal on one for about $800, nice s.b. ride with red velvet interior....
Don't get me wrong, I see them asking 6.5-8k all the time, but I've never seen one trade hands for that kind of $.....
Maybe all-the-time for a regular small block cars with very few options. If you find a really nice 73 SS 454, black on black, buckets, console, air, tac, 3.73 posi, all numbers matching with the drivetrain all fresh, for the 3.5-5K it would be a steal. I'd bet you'd want three times that if you had one in your garage.
They don't bring the money the early models bring, especially non-optioned cars, but if you find a BB car you better grab it becasue the bb cars numbers are very low and this vintage era of chevelles have been pretty much wiped out for scrap and racing. Go to a car show, dozens of the early chevelles with many big blocks. You won't likely see a bb 73-76 chevelle very often anywhere.
I think what makes them not very appealing is the huge wheel wells and small tires. Put a 245/60/15 up front and a 295/50/15 in back and they actually look pretty good. They drive amazing too. Way better than any of my earlier chevelles.
As for being a 4-speed,,,yes,, very, very rare with the 454.