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#1060648 - 02/05/19 04:58 PM GN 3.8 Swap......help  
Joined: Feb 2019
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Coltsfan1 Offline
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Coltsfan1  Offline
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Mendota, CA
I am in the process of building a strong GN motor. I was planning on finding a GN roller but I came across a decent MC SS yesterday and couldn't pass it up. My mind is going back and forth to finish my GN build and put it in the MC. I know it's been done and I'm asking anyone that has done this please give me a call as I want to discuss what you did.......
Call anytime....

Thanks Chad. 815 695 5290

#1060649 - 02/05/19 05:16 PM Re: GN 3.8 Swap......help [Re: Coltsfan1]  
Joined: Mar 2002
Posts: 321
Derrick Online content
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Derrick  Online Content
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Joined: Mar 2002
Posts: 321
beaver Dam WIsconsin
Check out turbobuick.com


1985 Monte Carlo SS
1985 Grand National
#1060650 - 02/05/19 06:48 PM Re: GN 3.8 Swap......help [Re: Coltsfan1]  
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Posts: 2,034
345HP87SSAC Offline
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345HP87SSAC  Offline
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Posts: 2,034
Stanberry, MO
Well I haven’t done it. But since g body to g body it literally should be a bolt in job. Everything from one will bolt into the other. May need a GN as a donor to save the little things purchases.


[Linked Image]
Alive again after surgery at MC Racing. 369 HP 346 TQ at the wheels. 6.0 LY6 VVT and 4L85E!blackgoldaero http://www.cardomain.com/ride/671193
#1060659 - 02/06/19 02:52 PM Re: GN 3.8 Swap......help [Re: Coltsfan1]  
Joined: Apr 2011
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Hunter79764 Offline
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Hunter79764  Offline
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Posts: 924
Grand Prairie, Tx
Ought to be fun. I'm going to suggest that you make sure and get at least one turbo badge and fit it in somewhere...
I'/m sure you'll have a few custom things like AC condenser piping (unless I'm mixed up and it was the Olds that had condenser inlets on the other side), but most stuff should be a bolt-in. The Monte EFI tanks on later TBI's were the same as GN tanks except for the pump. You might have a few issues on wiring up the dash (CEL, Cruise, maybe some other bits) but that will probably depend on year model more than switching from SBC to turbo Buick.


Sometimes you just need a bigger hammer...

'85 MC with budget 5.3L swap, TH350 with stock 2.14 rear end
It ain't much off the line, but it's nice on the highway
#1060671 - 02/07/19 05:34 PM Re: GN 3.8 Swap......help [Re: Coltsfan1]  
Joined: Oct 2014
Posts: 54
71_340 Offline
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71_340  Offline
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Posts: 54
Saint Robert, MO
I don't know how far you are into you GN motor build. I would think that a LS swap would be easier and cheaper to do and will make more reliable power especially if you go 6.0 or 6.2 and get the whole engine/transmission combo.


1987 Monte Carlo SS, 2017 GMC Denali 6.2L, 2015 MB GLK 350 (wife's).

One of the" Quiet Professionals"
#1060672 - 02/07/19 05:41 PM Re: GN 3.8 Swap......help [Re: 71_340]  
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Richie Cat Offline
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Lake Ronkonkoma, N.Y.
Originally Posted by 71_340
I don't know how far you are into you GN motor build. I would think that a LS swap would be easier and cheaper to do and will make more reliable power especially if you go 6.0 or 6.2 and get the whole engine/transmission combo.


He's doing it to different.
I have a TPI engine in mine because of the same thing.

Last edited by Richie Cat; 02/07/19 05:42 PM.

83 SC, 355 w/TPI
#1060676 - 02/08/19 12:33 AM Re: GN 3.8 Swap......help [Re: Richie Cat]  
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71_340 Offline
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71_340  Offline
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Joined: Oct 2014
Posts: 54
Saint Robert, MO
[/quote]He's doing it to different.
I have a TPI engine in mine because of the same thing.[/quote]

Got it! Just trying to offer an economical alternative.


1987 Monte Carlo SS, 2017 GMC Denali 6.2L, 2015 MB GLK 350 (wife's).

One of the" Quiet Professionals"
#1060699 - 02/09/19 10:19 PM Re: GN 3.8 Swap......help [Re: Coltsfan1]  
Joined: May 2007
Posts: 4,658
Buick Runner Offline
10+ Year
Buick Runner  Offline
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Posts: 4,658
Dharma station 1 the Hydra
Econmomical LS swap, that is an oxymoron.


SBC powered 1987 Regal with TES headers, ZZ4 intake, ZZ4 PROM chip, mini starter, THM2004R, 2500 stall converter, 2040 cam, CCC system, and 3.73 posi rear.

2008 ex NPS P71 Crown Victoria, cop motor, cop shocks, cop brakes.

Never argue with an idiot.
They will just drag you down to their level and beat you with experience.
#1060703 - 02/10/19 05:56 AM Re: GN 3.8 Swap......help [Re: Coltsfan1]  
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jmireles Offline
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jmireles  Offline
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Posts: 568
El Paso, Tx
Lol!!

Saying something is cheap or expensive is clearly subjective but I have to agree with Buick Runner. My LS swap was just shy of $10K and that was with my stepfather and I doing all of the work. In the end, I'm glad I did and wouldn't hesitate to do it again.


-'87 Monte SS LS 2/4L65e Quick Perf. 9" w/disk brakes
-'89 Iroc Z28 Stock 5.7 Edelb. TES headers, Borla Exhaust90K
-'77 Trans Am 468(Stroked) Doug's Headers Flowmaster catback
B & M shift Kit 400 Turbo trans. Edel brock Performer
RPM Intake Sean Murphy built Rochester Carb. Restored
in '08. 3K
#1060706 - 02/10/19 09:09 PM Re: GN 3.8 Swap......help [Re: Coltsfan1]  
Joined: May 2007
Posts: 4,658
Buick Runner Offline
10+ Year
Buick Runner  Offline
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Member

Joined: May 2007
Posts: 4,658
Dharma station 1 the Hydra
Some of it is just blind luck too. Some guys get lucky and find good deals, others are unlucky and are forced to pay full price.


SBC powered 1987 Regal with TES headers, ZZ4 intake, ZZ4 PROM chip, mini starter, THM2004R, 2500 stall converter, 2040 cam, CCC system, and 3.73 posi rear.

2008 ex NPS P71 Crown Victoria, cop motor, cop shocks, cop brakes.

Never argue with an idiot.
They will just drag you down to their level and beat you with experience.

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