V6 to LS3 Swap
Either way, we can build you a custom plug and play harness with the factory f-body firewall grommet, and routed just for your f-body. But that will take half of your budget.
An LS3 swap will really get into your wallet, even if you already have the engine.

Standalone LS Swap Harnesses IN STOCK!
LSX, LTX Stand alone swap harnesses. S10 LSX conversion PLUG AND PLAY harnesses, 24x conversion PLUG AND PLAY harnesses. LT1 to LSX PLUG AND PLAY Harnesses.
sales@bp-automotive.com
www.bp-automotive.com
1-888-467-4491
itll run u more than 1500 though to have it running. OP- In the end, it just comes down to what you want it to be. You can skimp and try and save money. I suggest taking your time and make it what you want it to be. It seems you have sentimental value in the car, dont cut corners- you will not be happy in the end. ( has nothing to do with harness, just advice for your swap in general.)

Standalone LS Swap Harnesses IN STOCK!
LSX, LTX Stand alone swap harnesses. S10 LSX conversion PLUG AND PLAY harnesses, 24x conversion PLUG AND PLAY harnesses. LT1 to LSX PLUG AND PLAY Harnesses.
sales@bp-automotive.com
www.bp-automotive.com
1-888-467-4491
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Biggest thing in there is the 58X Reluctor. I would get the Conversion Box, re-wire the Harness to a 99-02 LS1 Fbody, get a 2002 LS1 Computer and the 90mm 4-bolt TB, and a 4L80E..maybe a 4L60E but that depends on what you are doing with it.
I'm saying this cause that 6L80E is a monster..that and that is what I would do if I had to put a LS3 into a 4th Gen given the parts you currently have.
Budget and knowledge is a factor here.
As Merv said, use the converter box or change your reluctor wheel and run on the 0411 pcm. Put a 4l80 behind it and call it a day. You can rewire the lsx harness to work in your car or purchase a harness. These options will make your swap 10x easier.

Standalone LS Swap Harnesses IN STOCK!
LSX, LTX Stand alone swap harnesses. S10 LSX conversion PLUG AND PLAY harnesses, 24x conversion PLUG AND PLAY harnesses. LT1 to LSX PLUG AND PLAY Harnesses.
sales@bp-automotive.com
www.bp-automotive.com
1-888-467-4491












