Which Wiring Harness and PCM to use?
Which Wiring Harness and PCM to use? I posted this in the PCM section but figure I may get a lot more specific traffic here. Sorry if this sounds like a dumb question but I am racking my brain a little on what direction to go with this. 
I have a 2008 LY6 block...I am using none of the VVT stuff, only the block and rotating assembly. I plan on switching over the front to all LS2 stuff - timing cover, cam sensor, etc...and with the L92 heads I might use the L76 intake but more than likely a carb style intake with a 90-deg because the throttle body ends up in a much better place for plumming. This is going to be a turbo build, btw, and I am matching it up with a 4L60e transmission and speed density tuning.
That all being said, can I use the harness from a '05/'06 GTO and reprogram for the 4L60E instead of the 65E?
What about if I wanted to use a cable driven throttle body? Could I use an Fbody PCM and would I need to change up the timing cover/cam sensor or could that be made to work with the earlier set up?
Thanks in advance guys...as you can tell I am WAY over thinking it...
I have a 2008 LY6 block...I am using none of the VVT stuff, only the block and rotating assembly. I plan on switching over the front to all LS2 stuff - timing cover, cam sensor, etc...and with the L92 heads I might use the L76 intake but more than likely a carb style intake with a 90-deg because the throttle body ends up in a much better place for plumming. This is going to be a turbo build, btw, and I am matching it up with a 4L60e transmission and speed density tuning.
That all being said, can I use the harness from a '05/'06 GTO and reprogram for the 4L60E instead of the 65E?
What about if I wanted to use a cable driven throttle body? Could I use an Fbody PCM and would I need to change up the timing cover/cam sensor or could that be made to work with the earlier set up?
Thanks in advance guys...as you can tell I am WAY over thinking it...
Last edited by BanditDave; Jul 19, 2010 at 12:38 PM. Reason: wrong year...typo
Harness I went with a custom harness. I did everything you talked about doing except went with a 4l80e. Harness ran me 575 all ls3 injectors are the same connection wise? So no mod there. They did have to modify for ls2 timing cover and vvt delete. I also ran a tcu for better tunibilty of the trans. Hope this helps. I used a corvette ls3 intake instead of l92 intake.
I went with a custom harness. I did everything you talked about doing except went with a 4l80e. Harness ran me 575 all ls3 injectors are the same connection wise? So no mod there. They did have to modify for ls2 timing cover and vvt delete. I also ran a tcu for better tunibilty of the trans. Hope this helps. I used a corvette ls3 intake instead of l92 intake.
Thanks,
Dave
