V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

2.8 to 3.4 swap - has anyone done it?

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Old Oct 19, 2008 | 09:57 PM
  #1  
88onfire's Avatar
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From: Lee's Summit, MO
Car: '88 Firebird
Engine: 350 (340 Est. HP)
Transmission: Turbo 350 (1800 Stall Convertor)
Axle/Gears: 3.42 Posi/28 Spline/Alum Diff Cover
2.8 to 3.4 swap - has anyone done it?

As i further my search for the most bang for the buck v6 setup i thought about this swap. If anyone has performed it please let me know, if possible include what parts you used off which motor. Thanx, i haven't found any of this online so i guess ill keep searching thirdgen.
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Old Oct 19, 2008 | 10:29 PM
  #2  
project89's Avatar
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From: Utah
Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: 2.8 to 3.4 swap - has anyone done it?

https://www.thirdgen.org/forums/v6/4...light=3.4+swap

https://www.thirdgen.org/swapboogie
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Old Oct 20, 2008 | 05:50 AM
  #3  
Dale's Avatar
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From: AR
Car: 1991 Camaro RS Vert
Engine: 350 S-TPI
Transmission: T5
Axle/Gears: GU5/G80/J65
Re: 2.8 to 3.4 swap - has anyone done it?

I have a thread on here about it too.
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Old Oct 20, 2008 | 08:15 AM
  #4  
forkvoid's Avatar
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From: Knoxville, TN
Car: '87 Camaro / '87 Chevy K10
Engine: 3.4L MPFI (soon) / 5.7L TBI
Transmission: 700R4 / 700R4
Axle/Gears: 3.42 / 3.73
Re: 2.8 to 3.4 swap - has anyone done it?

As do I.

(search for threads started by our usernames to find them)
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Old Oct 20, 2008 | 04:44 PM
  #5  
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
Re: 2.8 to 3.4 swap - has anyone done it?

I did it, kept the 3.4 accessories (minus a/c). Pretty straight forward, read teh 2.8~3.4 swap boogie Karl wrote up.
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Old Oct 20, 2008 | 06:47 PM
  #6  
88onfire's Avatar
Thread Starter
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Joined: Jun 2008
Posts: 30
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From: Lee's Summit, MO
Car: '88 Firebird
Engine: 350 (340 Est. HP)
Transmission: Turbo 350 (1800 Stall Convertor)
Axle/Gears: 3.42 Posi/28 Spline/Alum Diff Cover
Re: 2.8 to 3.4 swap - has anyone done it?

sweet thanks for all the info
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