Ya killed your head gasket dude. DONT TRY AND RUN IT WITH THAT PROBLEM. GET TO A MECHANIC OR FIX IT YOURSELF.
You could have a cracked engine block.
Yeah, but, I would use the Chevy trans, as well. You will have to fabricate everything.
If it is motor oil in the anti freeze, then it is either a cracked head, cracked engine block, or a head gasket blown. If it is transmission fluid in your antifreeze, then the radiator is leaking from the transmission cooler ----- although usually that would cause antifreeze to be in your transmission fluid.
Yes, but I would use the C6 tranny too.
yes, they use the same block design and block mounting though those years. you would just need motor mounts for a 97 as thickness and offset differ slightly.
Cracked injector cups.
yes
Low fuel pressure, stoped up fuel filter.
Check for a fuse in fuse block marked gauges.
YES. That would be a direct swop.
It would bolt in, however, that entire vehicle is run by computer, and would not even start, without completely rewiring it, even if you could get by the smog laws you would be breaking by doing this.
A 1977 Chevy pickup truck would have rotors in front and drums in the rear