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-   -   Wiring harness question (https://67-72chevytrucks.com/vboard/showthread.php?t=759218)

krue 03-13-2018 06:29 PM
Wiring harness question
 
Noticing some issues with the harness on the 03 Savana 6.0l harness. I have an 01 Silverado 4.8l parts truck. Can I use that harness for my swap? Both are drive by cable. The truck was 4wd with the4l60e and the van is 2wd 4l80e.

t300 03-13-2018 09:27 PM
Re: Wiring harness question
 
i used a 2001 silverado 4x4 4.8 harness on my 2002 6.0 lq4 motor. DBC and 4l60e. was my first LS rewire but went fine.

ls1nova71 03-13-2018 10:09 PM
Re: Wiring harness question
 
Quote:
Originally Posted by krue (Post 8211041)
Noticing some issues with the harness on the 03 Savana 6.0l harness. I have an 01 Silverado 4.8l parts truck. Can I use that harness for my swap? Both are drive by cable. The truck was 4wd with the4l60e and the van is 2wd 4l80e.
They're basically the same harness, but vans use a different MAF, so you may need to change the plug. Also, you will need to re-pin the transmission connector to a 4l80e if that's what trans you're using, but it's pretty straight forward. http://lt1swap.com/4l60e_4l80e_harness.htm

krue 03-13-2018 10:27 PM
Re: Wiring harness question
 
Quote:
Originally Posted by ls1nova71 (Post 8211221)
They're basically the same harness, but vans use a different MAF, so you may need to change the plug. Also, you will need to re-pin the transmission connector to a 4l80e if that's what trans you're using, but it's pretty straight forward. http://lt1swap.com/4l60e_4l80e_harness.htm
I was planning on swapping the truck intake on the van, it's not as fugly. I assume that is doable.

Dustytrix 03-13-2018 10:45 PM
Re: Wiring harness question
 
Yes you can swap intakes,

Flubyu 03-14-2018 11:59 PM
Re: Wiring harness question
 
I’ve heard the van harness gives you more wire length...may help with pcm mounting.

BR3W CITY 03-15-2018 03:35 AM
Re: Wiring harness question
 
The main "leg" of the van harness has a good deal of extra length (like 14-18" IIRC). My donor was from a truck, and I had my harness done on the van-donor style. Made moving ECM mounting locations easier imo.

krue 03-15-2018 07:59 AM
Re: Wiring harness question
 
My van harness has sensor wires cut out, multiple butt splices crimped on, to include mystery wires added.


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