4.8 swap into a 1950 GMC - The 1947 - Present Chevrolet & GMC Truck Message Board Network

suburban99 · 01-23-2022, 12:28 PM

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

suburban99 · 01-23-2022, 01:28 PM

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.

**jweb** · 01-24-2022, 04:31 PM

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

suburban99 · 01-24-2022, 04:55 PM

Quote:

Originally Posted by jweb

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

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.

rodstored-72 · 01-24-2022, 07:32 PM

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.

01-23-2022, 12:28 PM	#1
suburban99 Registered User Join Date: May 2014 Location: Mission BC Posts: 452	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 __________________ 1962 C10 Longbox LS 5.3 4L60E----Sold$$ 2014 Ram 4x4 3500 Laramie Diesel..Momma's truck 2015 Ram 4x4 1500 1997 Boxster. 1972 K10 Custom Deluxe LS 6.0 1950 GMC 3100 S10 & LS swapped

01-23-2022, 01:28 PM	#2
suburban99 Registered User Join Date: May 2014 Location: Mission BC Posts: 452	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. Attached Images __________________ 1962 C10 Longbox LS 5.3 4L60E----Sold$$ 2014 Ram 4x4 3500 Laramie Diesel..Momma's truck 2015 Ram 4x4 1500 1997 Boxster. 1972 K10 Custom Deluxe LS 6.0 1950 GMC 3100 S10 & LS swapped

01-24-2022, 04:31 PM	#3
jweb Senior Member Join Date: Apr 2010 Location: Oregon Posts: 1,208	Re: 4.8 swap into a 1950 GMC Should be able to find what you need here https://lt1swap.com/2000harness.htm __________________ 1951 Truck, LS1/4L60 1964 Suburban, current project 2014 Silverado daily driver 1953 Westerner "canned ham" trailer, rebuilt 1974 Prowler trailer, rebuilt

01-24-2022, 07:32 PM	#5
rodstored-72 chevy truck fan Join Date: Mar 2005 Location: Gilbert, arizona 85298 Posts: 2,008	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.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.