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.

v6 to 305 Swap

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Old Apr 8, 2004 | 12:15 PM
  #1  
BadBird84's Avatar
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Joined: Feb 2002
Posts: 167
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From: Thomasville, NC
Car: 1984 Pontiac Firebird
Engine: 2.8l :(
Transmission: T-5 Five Speed
v6 to 305 Swap

Im swapping in a 305, and I don't want to hear it isn't worth it, I know, I just need to know if I can use my current T-5 transmission. I already have AC delete, so that simplifies it a bit, and I wanted to know if I have to change springs. My radiator is already swapped for a v8 one, and I am planning on changing the computer. Am I missing anything else that will have to be changed? Thanks!
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Old Apr 8, 2004 | 05:20 PM
  #2  
five7kid's Avatar
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Joined: Mar 2000
Posts: 43,187
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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
All covered on the engine swap forum.

I'll move there, read the sticky at the top of the forum, you did search on the Tranny forum I'm sure, but...

You can "use" the V6 T-5, but it's not a bolt on. The bellhousing is a big "nope".
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Old Apr 8, 2004 | 09:25 PM
  #3  
Cam84358's Avatar
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Joined: Aug 2001
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From: Armington,Illinois,USA
Car: 84 Camaro
Engine: v6 to v8 swap 357ci chevy
Transmission: TCI Turbo 350
The car will handle better with the v8 springs no doubt.I didnt change mine .Depends on what you want to do with the car and how you want it to handle.
For a daily driver street car that handles well Id consider changing the springs.
For a street/strip car keeping the v6 springs and removing the sway bar allows the front end to come up for better weight transfer on launch
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Old Apr 20, 2004 | 07:51 PM
  #4  
BadBird84's Avatar
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Joined: Feb 2002
Posts: 167
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From: Thomasville, NC
Car: 1984 Pontiac Firebird
Engine: 2.8l :(
Transmission: T-5 Five Speed
Thanks Cam! Great advice, I think Ill leave them, cuz Im going the Street/Strip route
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