4.8 swap into a 1950 GMC
 

Hey all.
This is my third swap so I am by no means an expert, but i have a basic understanding of how the wiring should go. Bought a 4.8, 4l60E from a guy who was moving..Usually I buy the whole truck and remove engine/harness myself.
Anyway the harness was in a bucket, I got all the bits (tac/pedal/ecm etc).
I need a picture of the location of the plugs/sensors and the wire colors if possible. I could wire by wire off the pcm but trying to save time. If anyone has one it would help. I have already removed what I don't need from the harness..Thanks

Re: 4.8 swap into a 1950 GMC
 

I think I have it mostly figured out except this one plug. 16 pins
1 wire goes to alternator
4 wires go to 2 pin plugs that I have no idea what for.

Re: 4.8 swap into a 1950 GMC
 

Should be able to find what you need here
https://lt1swap.com/2000harness.htm

Re: 4.8 swap into a 1950 GMC
 

Yeah Jweb, I used lt1swap as my primary resource for the other 2 I did. I guess I just cut that plug off..(according to Lt1swap)..this one is DBW others have been DBC and I don't remember that plug.

Re: 4.8 swap into a 1950 GMC
 

i have a stock 4.8 2013 engine with uncut harness i will see if i can find the plug & tell what it is too.. i THINK it is for the data & "periphreals"... not sure though.