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what would you build lq9 or lq4? (I have both)

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Old 12-18-2008, 09:38 PM
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Default what would you build lq9 or lq4? (I have both)

I have a LQ4 with 55k miles on it all stock out of a 2002 chevy truck.

today I just bought a LQ9/transmission/tcase with 3500 miles (yes 3500 miles) out of a 2002 escalade test vehicle. I got this engine complete with all the front acc stuff, wiring, computer, radiator, basically everything you need. I also got the hydroboost and thats going into my blown 67 camaro

now I got all these parts and am not sure what to do. I'd like to run the Lq9 since it only has 3500 miles on it and change the output shaft on the trans to a 2wd version (4l65e), but the original plan was to run the lq4 with a 76mm turbo since its got the lower compression....and thats why I'm leaning more towards the lq4...if I do run the lq4 i'm also going to use a 4l80e.

will all the wiring, computer, accessories, work on the lq4 off the lq9?

what would you guys put together with all these parts?
Old 12-19-2008, 10:25 AM
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I'd run the lq4/4l80e/turbo setup, and all the accessories from the lq9 will work fine with the lq4.
Old 12-19-2008, 10:27 AM
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Originally Posted by adam1803
I'd run the lq4/4l80e/turbo setup, and all the accessories from the lq9 will work fine with the lq4.
I'm thinking of just taking the wiring and ECM off the lq9 and just selling the lq9 and trans that I just bought.
Old 12-19-2008, 12:45 PM
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Built turbo LQ4 sell the LQ9 you can probably get a good bit for it.
Old 12-19-2008, 12:51 PM
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lq9 408
Old 12-19-2008, 01:06 PM
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lq4 for sho!!!
NAVY havent i taught you anything LOL
Old 12-19-2008, 01:13 PM
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Originally Posted by Shawn MacAnanny
Built turbo LQ4 sell the LQ9 you can probably get a good bit for it.
any reccomendations on where to list it? I wouldnt even know where to start.
Old 12-19-2008, 01:15 PM
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on here in the for sale section....lsx parts
also check the parts wanted...on most occasions someone is looking for exactly whats sitting in your garage
good luck man
Old 12-19-2008, 01:18 PM
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can I use any year 4l80E or is it best to get a certain type or year?
Old 12-19-2008, 05:47 PM
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Originally Posted by darkostoj
can I use any year 4l80E or is it best to get a certain type or year?
I forget the year breakdown on the 4l80e's, but the 99+ model would be your best bet.
Old 12-19-2008, 05:47 PM
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Originally Posted by LS1-NAVY
lq9 408
Then it wouldn't be an LQ9 anymore...
Old 12-19-2008, 07:28 PM
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The LQ9 is going to be worth atleast $500 more than the LQ4 being its a 10:1 CR with flat top pistons opposed to 9.5:1 like the LQ4 plus it has fewer miles. You should be able to sell it on Ebay or here in the for sale section for around 1800 or so i would think.
Old 12-20-2008, 08:04 PM
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The LQ9 has stronger rods, maybe a consideration if you're going boosted




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