LS 5.3/4L60E into my 93 SCSB.

[SimpleGreen]

Look here http://www.lt1swap.com/underhoodfuseblock.htm
ignition power goes to a pink wire on the that black connecotr with like 12 or so wires on it, next to the blue one. And also on the underhood fuse block that link shows where it needs to go.

Water temp most use an adapter and put your guage sedning unit on back pass. side of head. there is a plug there.

I think on the a/c request you can have your programmer turn that on for a fan control wire if you run electric fans.

Thanks. I sat at the computer for about 8 hours yesterday, visited 4 or 5 websites and took 4 pages of notes. I think I have just about all my answeres covered. Looking forward to doing the swap.

[classic79]

I'm in the middle of mine now on a 89 suburban. Any ? let me know. But going off lt1swap info is dead on so far. My fuel pump fires off the ls puter so far, and starter turns over too. I need to sort out my exhaust then try to start it.