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    Results 1 to 6 of 6
    1. #1
      Join Date
      Sep 2023
      Location
      Seattle WA area
      Posts
      19
      Country Flag: United States

      Tri-Five w/LS wiring harness

      I have a 57 Chevy I am starting on; it will be more than likely LS3 powered. I was wondering what you all are using for wiring harness options. I was looking at a Painless harness but as I am new to the classic car builds, I want to ask opinions. I was always an import car guy but now it is time to do this 57 in tribute to my dad and build it to make him proud. It will be a pro touring build and I have an Art Morrison chassis on order for it, but I want to rewire it for dependability. Sorry if this is basic and has been answered before.

      It's not a matter of if, it's a matter of when...


    2. #2
      Join Date
      Oct 2016
      Location
      Auckland, New Zealand
      Posts
      72
      Country Flag: New Zealand
      I can't answer your question, but would suggest that you take a look at trifive.com. There is a section there devoted entirely to LS conversions, and I am sure that there will be an answer in the FAQ section. Good luck.

      https://www.trifive.com/forums/ls-lt...nd-answers.65/
      cheers Russell

      My 1957 Pontiac Star Chief powered by a 5.3 LS with a 4L60E transmission, on 18" US Mags Big Slots.

    3. #3
      Join Date
      Nov 2006
      Location
      Mountain Springs, Texas
      Posts
      4,849
      Country Flag: United States
      Quote Originally Posted by Hutchracer View Post
      I have a 57 Chevy I am starting on; it will be more than likely LS3 powered. I was wondering what you all are using for wiring harness options. I was looking at a Painless harness but as I am new to the classic car builds, I want to ask opinions. I was always an import car guy but now it is time to do this 57 in tribute to my dad and build it to make him proud. It will be a pro touring build and I have an Art Morrison chassis on order for it, but I want to rewire it for dependability. Sorry if this is basic and has been answered before.
      I used an American Autowire Classic Update harness on the trifive builds I have done. Good product.
      1969 Camaro - LSA 6L90E AME sub/IRS
      1957 Buick Estate Wagon
      1959 El Camino - Ironworks frame
      1956 Cameo - full C5 suspension/drivetrain
      1959 Apache Fleetside

    4. #4
      Join Date
      Aug 2007
      Posts
      730
      On my frame off LS builds I use the Painless universal chassis wiring harness. I use Speartech and Howell for the LS wiring harness.

    5. #5
      Join Date
      Sep 2009
      Posts
      2,969
      Country Flag: United States
      You really can't go wrong with either Painless or AAW. Both are great options.


      1955 Nomad project LC9, 4L80e, C5 brakes, Vision wheels
      1968 Camaro 6.2 w/ LSA, TR6060-Magnum hybrid and etc SOLD
      1976 T/A LS1 6 Speed, and etc. SOLD
      Follow me on Instagram: ryeguy2006a

    6. #6
      Join Date
      Sep 2023
      Location
      Seattle WA area
      Posts
      19
      Country Flag: United States
      Thank you guys for the suggestions, these were the options I was looking at but the Speartech and Howell is a new one
      It's not a matter of if, it's a matter of when...




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