Wire Harness Conversion on a Vortec 454

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Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=16575
Printed Date: August 28, 2025 at 3:05 AM

Topic: Wire Harness Conversion on a Vortec 454

Posted By: rreiffer
Subject: Wire Harness Conversion on a Vortec 454
Date Posted: July 22, 2003 at 1:26 PM

Hello,

I have a 98 454 Vortec that I want to put into my 94 Suburban. The Suburban has a 4L80E transmission with dual AC. Has anyone converted the wire harness from a Vortec engine (96 and newer) and put it in a 94 (or older) Chevy truck or Suburban? If so, do you have the diagrams for the wire harness? Any ideas or help on this would be appreciated.

Ricardo

Replies:

Posted By: hotrodelectric
Date Posted: July 23, 2003 at 11:26 AM

Ricardo- give me a bit of time to check this out. What you want is possible, I just don't know off the top of my head what you need. The dual A/C shouldn't be a problem- it all runs from the same compressor, and the 4L80E should be the same across the board.If you need some immediate help, you can try Street & Performance (link).

Posted By: rreiffer
Date Posted: July 31, 2003 at 8:06 AM

Hello,

Were you able to dig up anything on the harness? Thanks

Ricardo

Posted By: johny q
Date Posted: July 31, 2003 at 9:11 AM

I am told that https://www.painlesswiring.com can manufacture custom harnesses to fit just such cases as yours. You may want to check them out.

Johnny

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