I had a '76 Aspen that been overheated badly and the original 318 was junk/barely ran.
I swapped a '68 318 in. (engine came from a free '68 Satellite).
It was metallic black 2 door. I worked really hard on it, but in the end I just didn't like driving the car very much.
Looking back, it seems like the suspension felt driving a bowl of oatmeal, or maybe the chassis was super flexible, or something like that.
I drove it for about two weeks and put it up for sale.
If I did one again it would have to be built up more, at least a 360 if not a big block, and the mushy suspension would have to go.

I still like the way the Aspen/Volare 2 door looks, and think they look especially great as a street/strip or drag car when all done up.
They did a nice job on the styling of those.

Later I got an '83 5th Avenue, it had well over 200,000mi on it but ran halfway decent, and I actually enjoyed driving
it for a few years until I started hauling PA for my band and it was too small for that. I did a bunch of maintenence to make sure it wouldn't
die (timing chain, de-sludged the lifter valley, de-coked the intake heat crossover, stuff like that).
I can't remember if it had 255k or 275k on it when I sold it.
Midstream I hit a deer with it but all it did was break the grille.
It was just a good car.