Conversions & Swaps LSX Engines in Non-LSX Vehicles
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LSA/Grand National Conversion

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Old 07-04-2014, 08:17 AM
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Very nice, this should be a pants full of fun.
Old 07-04-2014, 08:24 AM
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Hard to call a GN a sleeper, but this thing is just down right nasty.
Old 07-05-2014, 12:25 AM
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One step closer. All accessories on and everything fitting good.
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Old 07-05-2014, 02:25 AM
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what wheels are going to run?
Old 07-05-2014, 11:29 AM
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I have had a set of Simmons made. 18x8.5 front and 18X11 in the rear.
Always loved these wheels on GN's.
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Old 07-05-2014, 03:07 PM
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Originally Posted by tdishon
One step closer. All accessories on and everything fitting good.


Wow! That looks great!

You went all out. A 4000 mile GN, LSA..I wish I could see this in person!
Old 07-05-2014, 03:12 PM
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I get some flack for using a low mile GN, but I really wanted a good starting point that was unmolested, rust free and just new. I figured if I bought one with 70-90k miles, I would be doing so many other little projects to get it mint that it would end up costing about the same in the end.
Old 07-05-2014, 03:57 PM
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You won't get any disrespect from me. Good for you! Car will haul! I'm sure some of the GNX guys will hate the GNX only features..I think it looks awesome! I wish I had deeper pockets.....Im just drooling over that powerplant!
Old 07-06-2014, 09:26 AM
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Originally Posted by tdishon
I get some flack for using a low mile GN, but I really wanted a good starting point that was unmolested, rust free and just new. I figured if I bought one with 70-90k miles, I would be doing so many other little projects to get it mint that it would end up costing about the same in the end.
Man, I'm guessing this build is not very popular on the GN boards, but I love it!

Can't wait to see it run, good luck.
Old 07-06-2014, 02:21 PM
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Originally Posted by Project GatTagO
Nice....Are those 4th Gen F-body engine mounts on the engine with custom frame stands?

Andrew
Any info on this?

Andrew
Old 07-07-2014, 11:57 AM
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I guess it would be more true-to-form if it were a turbo car, but the LSA setup is a nice package without a bunch of pipe routing and other fab work.
Old 07-08-2014, 06:29 PM
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It will have a turbo(s) in the factory location(might be twins). The turbo(s) will be in upper pass position. Both will have water to air intercoolers.

Last edited by tdishon; 07-08-2014 at 09:59 PM.
Old 07-08-2014, 06:32 PM
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The mounts attached to the engine are F-body mounts and the frame brackets are spohn. It actually bolted right in with a G-Force 4L80E crossmember. Just had to do the frame notch for the A/C compressor. I need the compressor mounted lower due to the location of the turbo(s) will be on the upper pass side.
http://www.spohn.net/shop/1982-1992-...ng-Stands.html
http://www.spohn.net/shop/1982-1992-...Clamshell.html

Last edited by tdishon; 07-08-2014 at 09:58 PM.
Old 07-09-2014, 08:50 AM
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Originally Posted by tdishon
It will have a turbo(s) in the factory location(might be twins). The turbo(s) will be in upper pass position. Both will have water to air intercoolers.
Huh? It's going to have turbos before the SC?
Old 07-09-2014, 11:11 AM
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Yes, either small twins or a single turbo before the supercharger. Forced Induction Tuning here in Phoenix has been doing the combination for years with amazing results. Zero lag and about 950hp/tq. I would prefer about 750hp/tq due to what I can transfer to the ground...
Old 07-09-2014, 11:51 AM
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MAN I always wanted a GN(still do). Long nose, short deck, all business but beautifully angular/muscular at the same time. And black, of course. This is going to be a sweet ride. Hell, it's cooler than anything I have before you even get it finished!

So are the guys on the GN forums wanting to murder you for cutting on a 4600 mile car?
Old 07-09-2014, 12:19 PM
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***** the GN forum members. They should of bought this car first then. I say hats off to the OP for going all out and doing a bad *** build.

GREAT WORK!!!!!!!!!!
Old 07-09-2014, 01:16 PM
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Thx guys.
Some of the guys like the build at the turbo buick forum and other have other opinions too. I figure why not do what I want to it. I graduated high school in 1987 and the GN was "the" car with the whoa factor back then. I guess this car always stuck in my head and now I'm in my midelife... lol
Old 07-09-2014, 01:52 PM
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@Jimbo agreed. It's humorous how bent out of shape those guys get though which is why I asked. You might get me a bit bothered if you started hacking the body up significantly but I say as long as you retain the "soul" of the original then go nuts.

I'm a little behind you but give me 6-10 years and I'm sure I'll be back in here asking you guys how to mate the LS9 to the AWD setup in a Cyclone or Typhoon. Yep, I am sure it's already out there and I don't want to know where...yet. I need that 6-10 to save some $$ before I start drooling over my next project.
Old 07-09-2014, 01:55 PM
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COMPOUND BOOST FTW!!!


I like where this is going, but would like it even more if it involved a bigger blower and turbos that are almost too big for it


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