Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

3.1 to 350 question

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Old Oct 1, 2009 | 08:05 AM
  #1  
tman1753's Avatar
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Joined: Sep 2009
Posts: 30
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From: Middletown, NY
Car: 1991 RS
Engine: 350
Transmission: 350 turbo
Axle/Gears: 3.73
3.1 to 350 question

I am swapping my 3.1 to a 350. Will my 350bolt to my 700r4 transmission?

admin wrote this in v6 sticky:

am i going to have any problems? as far as i knew, the 450 would bolt right up

If you are considering an engine swap in the pursuit of more power, please be aware that The RWD 60* iron-headed engines are the only DIRECT bolt in applications that fit 3rd Gen V6 F-bodies.

This includes the the following engines:
2.8L from the Fiero, Camaro, Firebird and TBI/Carb'd S10's
3.1L from the Camaro and Firebird (1990 - 1992)
3.4L from the Camaro and Firebird (1993 - 1994)
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Old Oct 1, 2009 | 09:53 AM
  #2  
camaronewbie's Avatar
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Joined: Sep 2002
Posts: 9,192
Likes: 19
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: 3.1 to 350 question

The 350 will NOT bolt up - that's why that info is in the sticky.

V6 trannies have a different bellhousing from V8, and I'm not sure they'll handle the power IF you did swap bellhousings.
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Old Oct 1, 2009 | 09:13 PM
  #3  
Project: 85 2.8 bird's Avatar
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Joined: Jul 2001
Posts: 4,461
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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: 3.1 to 350 question

they wont. some don't even last too long after a 3.4 swap
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