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LX9 Swap Questions


Addicted To Boost

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So, if someone were wanting to swap an LX9 into a first gen, OBDI w-body, what all is needed to do the swap? Does it matter if it was pulled from say, an '06 G6?

What would I do about motor mounts, dog bones and the lower mount? Is there an ECM/chip combination that this would run best on, without going through the trouble of swapping the whole car to OBDII?

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get 04-06 3500. use motor mounts, exhaust manifolds, brackets, accessories, basically all under hood stuff from any gen 1 or gen 1.5 W body with a 3100. Get the external crank trigger and a custom throttle body. Run it on OBD1 with a custom chip...

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Will a stock 3400 throttle body bolt up? Why is it necessary to swap the exhaust manifolds? Is there a specific reason the stock 3500 manis won't work?

What AC compressor will I need to use? Will a w-body 3100 lower motor mount bolt up to the bottom of an '06 G6 3500?

 

Thanks!

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The throttle body will not bolt up. You can buy an adapter from milzy motorsports for 50 bucks. Or bolt up a 3400 UIM and throttle body.

You also need a crank trigger. The 3100 lower engine mount bolts up. The driver side dogbone mount bolts up. If you use 3500 UIM you need a FPR relocation kit from wot-tech. The exhaust on the 3500 goes down under the motor instead of around under the throttle body. I think a 3100 a/c compressor bolts up.

 

Here's a couple of threads to read through so you can see what all is involved with lx9 swapping a w

 

http://60degreev6.com/forum/showthread.php/47806-3500-Swap-Finally-Underway-a-few-questions

http://60degreev6.com/forum/showthread.php/36647-3500-swap-questions

http://wot-tech.com/shop/articles/swapping-a-3500-upper-onto-a-3400-engine/cat_80.html

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i think you can still use your stock 3.1 a/c compressor.

You need the fuel rail for a 3x00, and i have heard that grinding clearance into the intake manifold may be an option...

You need 3100/3400 exhaust manifolds and crossover.... the 97+ rear exhaust manifold is superior to the 96- exhaust manifold, but it also has a specific W-body downpipe that must come from a gen 1 or gen 1.5 97+ 3100 car. (or custom?)

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The 3500 will be going into a car currently with a blown LQ1 in it.

 

Seems like I'll have to use a lot of 3400 parts anyway, is there much benefit in running a 3500 vs running a 3400? Just curious.

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The 3500 had better flow from the heads up. Also a crank scraper and some oil jets on the pistons. A 3400/3500 hybrid is a popular swap too. Using a 3400 bottom and a 3500 top is will keep you from buying an external trigger and installing the 3400 crank pulley with it's 50something x sensor.

 

Or you could do a megasquirt:thumbsup:

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I was hoping to find something that drops in without a ton of work, and is similar in power output to the LQ1, that's why I'm considering the LA1 and the LX9.

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Repair/turbo LQ1

I'm sure the LQ1 is destroyed. I hydrolocked it at 5,500 RPM. This will just be a daily beater anyway.

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