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LC2 3.8 Turbo swap

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Old Nov 13, 2005 | 07:27 PM
  #1  
transformula87's Avatar
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From: VA
Car: 83 TA
Engine: 5.3
Transmission: 4L60e
LC2 3.8 Turbo swap

Has anyone swapped a LC2 Motor into their 3rd gen? Will it fit easily? what about 5 speed tranny?

Any information is greatfull...
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Old Nov 13, 2005 | 07:54 PM
  #2  
TexasLT1's Avatar
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From: Angleton, TX
Car: '92 RS
yeah, gm did it in 1989. Its called the Turbo Trans Am.
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Old Nov 13, 2005 | 07:57 PM
  #3  
transformula87's Avatar
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From: VA
Car: 83 TA
Engine: 5.3
Transmission: 4L60e
yeah i knew that GM did it... i was looking more for someone swapping one into theres.
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Old Nov 13, 2005 | 07:59 PM
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TexasLT1's Avatar
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From: Angleton, TX
Car: '92 RS
sorry, was just in a smartass mood



I know its been done. just do a search for TTA or grand national motor swap
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Old Nov 13, 2005 | 08:20 PM
  #5  
xtremeirocz's Avatar
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From: Houston-katy
Car: 1986 Irocz- Houstons Fastest Street
Engine: 408 LS1 w/ 2 stage
Transmission: Turbo 350
Axle/Gears: 3:73,3850 lbs , best of 9.92 @ 138
lol
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Old Nov 13, 2005 | 08:26 PM
  #6  
transformula87's Avatar
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From: VA
Car: 83 TA
Engine: 5.3
Transmission: 4L60e
havent found anything on the mounts...
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Old Nov 13, 2005 | 10:01 PM
  #7  
1981TTA's Avatar
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From: SE Michigan
Car: 81 Turbo Trans Am
Engine: 301 T
Transmission: 200-4R
Look no further than the FAQ on this board......

https://www.thirdgen.org/newdesign/faq/thirdgen.shtml

Search for "3.8" and it will jump you right to what (I think) you're looking for....?
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Old Nov 14, 2005 | 02:08 PM
  #8  
transformula87's Avatar
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From: VA
Car: 83 TA
Engine: 5.3
Transmission: 4L60e
sounds hard enough to just find the parts. Well, its still in my mind. I'm just tired of seeing 3rd gens with 350 crate motors in them....it gets really borring
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Old Nov 14, 2005 | 03:16 PM
  #9  
TexasLT1's Avatar
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From: Angleton, TX
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if you want to spend the money just to be different, go right ahead.
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Old Nov 14, 2005 | 04:08 PM
  #10  
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
Go Indian, then.

Seems to be the only "right" way to some 'Bird owners.
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Old Nov 19, 2005 | 03:15 PM
  #11  
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From: Emmett,Id.
Car: 87 Turbo Regal 11.78@115
Engine: Buick v6
Transmission: 2004r
I'm new to this board and I would like some info on this as well, as I'm also very interested in doing this to a 86 T/A, all help would be appreciated in this endeavor.
Thanks

Ron
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Old Nov 27, 2005 | 04:40 PM
  #12  
tta1415's Avatar
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From: Sterling Heights, MI
Car: 1992 Z28
Engine: LC2
Transmission: GM 2004R
Tons of people have done the 3.8 swap by using a GN engine, removing the AC, using a 700R4 and a common stock 3rd gen rear.
There are a few threads over on turbobuick.com in the TTA section and the hybrid section to help you out.
The general consensus from TTA owners though is to do it right (eg to mimic a TTA in all aspects) it's cheaper to buy a TTA.
The engine is not a regular GN engine.
The heads, valve covers, down pipe, motor mounts, crank, pistons, transmission, drive shaft, AC lines, intercooler, intercooler shroud, fuel pump, fuel pressure regulator, drive shaft, computer (chip), MAP, engine wiring harness, gages and front springs are not GN or standard V8 F-Body parts. The TTA's rear end is also the 3.27 Borg Warner 9 Bolt rear and TTA's had 1LE Brakes.
(both relatively uncommon in most 3rd gens)
Have fun

Last edited by tta1415; Nov 27, 2005 at 04:43 PM.
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Old Oct 25, 2006 | 05:44 PM
  #13  
Calico's Avatar
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From: Eastside
Car: 1985 Buick Regal T
Engine: 87 3.8 turbo/lc2 drive train
Transmission: 200r4brf
well it will never really be done right becasue its not a real tta...lol my buddy has a nice one. I'm getting ready to swap my lc2 drivetrain in a really clean gta.
I plan to re-use my gta rear and get 3.42 gears, 700r4 and an ls1 aluminum driveshaft. I removed the a/c a while back and I will use all the gn's parts and get a downpipe made. I don't predict it being to god awful hard
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Old Apr 4, 2007 | 04:10 PM
  #14  
bender63's Avatar
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Re: LC2 3.8 Turbo swap

Just saw mounts today after doing a google search on the TTA it just said mounts I think they were about 239.00 but could handle up to like 1000hp
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