Swap 454/4L80 from 92 C2500 into 88-98 C1500

[SKR]

So here's a question, inspired by this thread:

http://67-72chevytrucks.com/vboard/s...d.php?t=784239

I have a 92 C2500 with a 454 and a 4L80. I bought this truck to swap the transmission, and maybe the motor too, into my 81. Since I bought the 92 though I've been looking more into the swap, and it's more of a process than I thought. So for now the 81 is staying the way it is, and I have this 92 sitting in my driveway with no real use for it. And since I've had time to think and daydream I've started to wonder about building my own GMC 454SS.

I'm sure just like the 81, there's some work involved in transplanting this drivetrain into an 88-98 truck. The biggest question is, how much of the electrical stuff has to come over from the 92 to get the 88-98 to work the way it's supposed to? The thread I linked above makes it seem like more trouble than it's worth to swap over all the stock components. Is it possible to just use an aftermarket EFI and TCM to get it to run and shift, the same as I would have to in the 81? I assume I'd have to look to the aftermarket for a fuel pump and ignition as well. Is there anything in an 88-98 that needs the 92 electronics, or is there an aftermarket solution for everything?

I understand how backwards this looks, that my solution for a little work to swap a 4L80 is to buy another truck and with considerably more work swap the 4L80 and 454 into it. But these are things that happen when you have too much time to daydream, and it would be nice to have an OBS and a squarebody. I'm still at the daydreaming stage and probably the truck will just end up as a farm truck.



Isn't it ugly?