ls3 swap harness
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Junior Member
Joined: Apr 2007
Posts: 12
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From: Norfolk va
Car: Iroc
Engine: 6.2l LS3
Transmission: 4L65E
Axle/Gears: 10 bolt 3.42
ls3 swap harness
I have a 86 iroc and swaping in a ls3 I am using a painless wiring harness. my question is how do I blend both together? is there a simple step by step guide out there? or should I pay $900 for hawks to do it?
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Joined: Jun 2010
Posts: 361
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From: Buffalo, NY
Car: 92 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt 3.42 Posi
Re: ls3 swap harness
Joined: Jun 2006
Posts: 576
Likes: 4
From: Gobles, Michigan
Car: 92 Ttop Z28
Engine: Cammed 6.0
Transmission: T-56
Axle/Gears: Built 10 bolt-3.90s w/ PBR discs
Re: ls3 swap harness
In the lsx swap sticky at the top of the page, five7kid has posted very helpful links in the first few posts. There are a few speed are threads, detailing how to get the thirdgen harness ready to be integrated for a swap, getting a lsx harness ready to I regrade for a swap(which you can basically skip this, as the painless is already a standalone), then yet another thread on how to merge the two into one.
Last edited by 25th327RS; Oct 8, 2013 at 08:31 AM.
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