- City
- Redmond
- State
- OR
Jake- are you trying to use the stock harness or did you get an aftermarket harness?
I have several links that I used to modify my own harness down to 6 power feeds, fuel pump relay and starter relay, and brake switching wires. I am using that cop car fuse panel so that has complicated things "a bit"
.
Here's the links I have found most helpful. On the forums you just have to read through the posts and pick out what you need. I have found that even though there are similarities, be careful as to the year of your engine compared to the diagrams.
http://www.lt1swap.com/wiringharness.htm (Used this one the most)
http://www.ls1tech.com/forums/conversions-hybrids/312119-ls1-swap-faqs.html
http://www.thirdgen.org/techboard/ltx-lsx/157243-ls1-swap-question-answer.html
http://www.nc4x4.com/forums/showthread.php?t=39092
http://pirate4x4.com/forum/showthread.php?t=705829
http://www.ls1truck.com/forums/lsx-truck-conversions/
I have a ton more, but I was able to get most of my info from here. One of the biggest helps was buying an online wiring diagram for the donor vehicle.
If there's anything specific, let me know and I'll see if I have the info. I've "built" a pretty good binder of stuff by now...
I still haven't addressed fuel system plumbing. I'm elbow deep in my electrical system conversion. I'm building that fuse panel to be modular in that it is completely connected by various types of weatherpack connectors. That and trying to overthink and pre-plan for possible future system requirements...
I have several links that I used to modify my own harness down to 6 power feeds, fuel pump relay and starter relay, and brake switching wires. I am using that cop car fuse panel so that has complicated things "a bit"
.Here's the links I have found most helpful. On the forums you just have to read through the posts and pick out what you need. I have found that even though there are similarities, be careful as to the year of your engine compared to the diagrams.
http://www.lt1swap.com/wiringharness.htm (Used this one the most)
http://www.ls1tech.com/forums/conversions-hybrids/312119-ls1-swap-faqs.html
http://www.thirdgen.org/techboard/ltx-lsx/157243-ls1-swap-question-answer.html
http://www.nc4x4.com/forums/showthread.php?t=39092
http://pirate4x4.com/forum/showthread.php?t=705829
http://www.ls1truck.com/forums/lsx-truck-conversions/
I have a ton more, but I was able to get most of my info from here. One of the biggest helps was buying an online wiring diagram for the donor vehicle.
If there's anything specific, let me know and I'll see if I have the info. I've "built" a pretty good binder of stuff by now...
I still haven't addressed fuel system plumbing. I'm elbow deep in my electrical system conversion. I'm building that fuse panel to be modular in that it is completely connected by various types of weatherpack connectors. That and trying to overthink and pre-plan for possible future system requirements...
Last edited:




Wish I could weld like that...still learning...at least I can weld thin sheetmetal together with tack after tack after tack...