I have an 80 Cordoba LS. It is a J-body Cordoba, like a Mirada, but no chrome grill, a plastic nose. It looks better that way to me.

A 68-70 B-body 8&3/4 rear axle is a bolt-in upgrade. Schumacher makes mounts for any engine (small block or big block wedge)

Mine feels like a 3400 lb vehicle. If you get underneath and REALLY look at the framerails, they aren't very beefy. It's basically a stretched F-body (Volare/Aspen) floorpan.

Nice styling/bodylines. The last 2 dr rear wheel drive Mopar.

Springs & Things sell HD rear leaf springs that eliminate the "ISO" style sloppy suspension bushings.