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3.8 liter turbo Buick motor swap.

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Old Oct 26, 2004 | 03:14 PM
  #1  
paul5.0's Avatar
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From: Fla
Car: trans am 1991
Engine: 305
Transmission: 700r4
3.8 liter turbo Buick motor swap.

I own a 91 Trans am with a 305. Im building a 350 (383) and all that good stuff. here is the deal. IM BORED with the usual V8 crap. everyone is building a bigger V8 than the other guy for their camaro or firebird with a 700r4 or th350 a hugh cam and 3.73 gears. I want something different.

What do you guys know and/or think about a modified 3.8 turbo buick bolted to my 700r4 and 373 gears?

I know poniac did this at one time, plus the GN and the TA weigh about the same.
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Old Oct 26, 2004 | 04:07 PM
  #2  
five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
It's discussed from time to time. Often enough that it's covered in a tech article on the home page.

The 3.8 won't bolt to your TH700.

There are enough differences between the GN and TTA engine compartments to drive significant differences between the GN & TTA engines.

Search, & check out the tech article.
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Old Oct 26, 2004 | 08:11 PM
  #3  
Project: 85 2.8 bird's Avatar
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From: BFE, MD
Car: 13 Ram 1500/ 78 Formy
Engine: 5.7 / 7.4
Transmission: 6sp / TH350
Axle/Gears: 3.55 posi / 3.23
you could always get an L67 long block, put on an f-body intake manifold, and get a turbo kit or s/c kit installed. Still have to use either the V6 auto or manual tranny. Use the slanted upper intake manifold design, as it will clear the stock hood.

Last edited by Project: 85 2.8 bird; Oct 26, 2004 at 08:16 PM.
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Old Oct 29, 2004 | 11:56 AM
  #4  
1987 GN's Avatar
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From: Massachusetts
Originally posted by five7kid
The 3.8 won't bolt to your TH700.

Actually I believe there is an adaptor to make the 3.8 turbo motor work with the 700R4 transmission. Some people who have done the swap have actually claimed their cars ran faster with the 700 transmission than with the 200.
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Old Jul 22, 2012 | 08:41 PM
  #5  
Jim Heimbecker's Avatar
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Re: 1992 3.8 liter Buick motor swap.

i have a 1996 camaro with a 3.8 that took out a rod , and i found a 1992 buick park ave with a 3.8 in it is there any issues ill run into swaping it over into the camaro, or is it pretty much a easy swap ?
any info is greatly appreciated
you can e mail me direct to jimslife@hotmail.ca if you like
thanks again
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Old Jul 22, 2012 | 09:16 PM
  #6  
Fallen2603's Avatar
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From: DeKalb, IL
Car: 2006 Cobalt SS/SC
Engine: LSJ
Transmission: F35 MU3
Axle/Gears: 4.05
Re: 1992 3.8 liter Buick motor swap.

The engine in your Park Avenue is a 3800, not a 3.8.

They are NOT the same engine. Very similar, but not the same engine.

More research required.
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Old Jul 25, 2012 | 12:04 PM
  #7  
91phoenix's Avatar
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From: Wichita Falls, TX
Car: 91 Firebird,00 c2500,75 Vette
Engine: 3.1 but 350 soon, 350, 350
Transmission: T56 soon
Axle/Gears: stock 3.42 Posi to come
Re: 1992 3.8 liter Buick motor swap.

The 3800 in the Buick should also be a front wheel drive engine and would not have provisions for the side motor mounts. I actually have a 3800 sitting in my shop now from a 92 60,000 mile car.
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Old Jul 25, 2012 | 12:21 PM
  #8  
Fallen2603's Avatar
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From: DeKalb, IL
Car: 2006 Cobalt SS/SC
Engine: LSJ
Transmission: F35 MU3
Axle/Gears: 4.05
Re: 3.8 liter turbo Buick motor swap.

The 3800 is NOT a FWD-only engine. The 3800 also came in the '95-'02 4th-Gen F-body's. Both the FWD and RWD engines should have provisions on the sides of the block for mounts. Also, the same family of motor has also been used in Holden's, in a RWD configuration, since 1988.

Last edited by Fallen2603; Jul 25, 2012 at 12:25 PM.
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Old Jul 25, 2012 | 03:02 PM
  #9  
five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
1996 Camaro is a 4th gen, anyway.
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