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LS1 Swap Into 99 V6

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Old Jun 2, 2016 | 08:46 AM
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Default LS1 Swap Into 99 V6

I'm starting an LS1 swap into my 99 v6. The donor is a running 2000 Camaro LS1 that was hit on the side pretty good. The V6 has a lot of sentimental value, it was my first car. We built the motor significantly, but never could get it running the best. I found a running LS1 and decided its time to put an LS1 in it. Im sure I will have questions as I dig into the swap. Anyone have experience with doing this swap?

My V6 Car:
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The Swap Begins:
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Old Jun 2, 2016 | 09:24 AM
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https://ls1tech.com/forums/conversio...on-sticky.html

A lot of this applies to the V6 conversion. All Pro DIY is handy for wiring diagrams/pinouts if you can't find them elsewhere.
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Old Jul 5, 2016 | 11:38 AM
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Thanks for the info, made a lot of progress. Working on reassembling the motor not.

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More pics to come.
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Old Jul 5, 2016 | 06:02 PM
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you're doing it the right way. Take a full donor and pull everything from fuel lines forward.
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Old Aug 6, 2016 | 09:45 PM
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Making more progress



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For exhaust I'm looking at:


https://www.texas-speed.com/p-3516-t...e-headers.aspx


https://www.texas-speed.com/p-5187-t...d-cut-out.aspx



https://www.texas-speed.com/p-292-te...ed-y-pipe.aspx

Anyone have experience with any of these?
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Old Aug 23, 2016 | 02:35 PM
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I almost have it ready to go into my car. I do have one question regarding the fuel lines. The V6 has 3 lines, while the LS1 has 2 lines. Do I need to run the lines from the V8 camaro on the V8? I already upgraded the pump on the V6 camaro.
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Old Aug 23, 2016 | 02:46 PM
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v8 runs a returnless setup, and I think the third line just taps into the fuel filter.

I have done the same swap but I did a steel braided line setup with a aftermarket reg. and filter. Try doing a few searches, I know there are some guys that have done the swap in a more stock configuration that you can get a more definitive answer from.
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Old Aug 28, 2016 | 01:46 PM
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I went ahead and pulled lines from the z28 donor and put those on mine. No issues with that swap. I'm making a lot of progress. Swapped the rear end from the donor into mine because it's a posi rear end. Motor is assembled almost ready to get bolted in. Should be able to get motor put in mine in next few days.

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Old Aug 28, 2016 | 09:22 PM
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Ok I'm stuck. The v6 is a drive by wire while the ls1 is drive by cable. I pulled the throttle cable from the v8 donor without issue. I went to pull the pedal from the 6 and it as a module connected to the pedal. What do I do with the connector that I unplugged from that? Also what does the second cable on the throttle go to? It's the one that goes to front of car. What is its purpose?
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Old Aug 31, 2016 | 12:23 PM
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How do I switch the VIN to the VIN that is in my car? With the swap I need to still pass echeck, but I will have problems when they check it and the pcm vin does not match the car.
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Old Sep 25, 2016 | 09:44 PM
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