The 360 will fit with no problem, modify the drivers side (I think, did it once and promptly forgot) engine bracket ( you'll know for sure when you go to bolt it on) to pick up block lug and you will need a spacer, or stack washers to make up the gap.

The 727 will fit with the help of a hammer on the body seam, though you would be further ahead if you kept a 904 in the car; neither Doug's "D" Dart headers nor TTi's (the other under chassis exit header) will clear a 727. Or you could do fenderwells.

A 275/60x15 will fit on an 8 inch rim with a 5 1/2 inch back space, with out a mini tub though just barely, you do need to do the 3/4 inch inboard spring relocation, anything wider will require moving the springs in 3 inches then mini tub.

Upgrade the front end to 73-76 disk brakes, you'll also need the 73-76 upper control arms.

Since the car is already a V8 car, you do not need to change center link.

Hope this helps.

Jim Burch