Zeventy8

If it is the same as the truck 5.0 then watch out for the height of the intake plenum also (about 2" higher I think)

Anything is possible with enough $$$. With that small car, why don't you look into the 240sx motor? It may have enough power to put a grin on your face. You could always save the small block for a Z (which has far better documentation).

Hot Rod (or some similar publication) had an article within the last two months about McCloud coming out with modular adaptors to mount the newer T56 to just about any engine produced in the last forty years. They are already finishing up on the older chevy sm block and big block chevys and 5.0 Fords are to follow. There was also a chart listing BOP availability for those who simply must have a 6-spd 442 (462 ?) and Ford and Dodge engines of all sizes. Best to give them a call!

I have never had to play with aluminum drums, but cast iron will always come off with a good soaking of penetrant on the center (PB Blaster comes to mind) and hitting the drum at a 45 deg. angle at 9:00 (3:00 if a righty) far harder than you think you should with a 2 lb. sledge. Works on my Z, '69 Cutlass, Monza, etc. A shop teacher at Sierra (Sacramento anyone?) showed me years back. Low tech still has a place in the world.

Does it all go together without spacers? Why the 240sx caliper? If you're making a bracket, why not try to use the 300zx 4 pot calipers?

Before too much time/money is invested, bleeding the master cylinder first, then the wheels once more might be prudent.