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Engine Ideas/Questions

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Old Jun 22, 2010 | 08:11 PM
  #1  
thirdgenguy's Avatar
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Engine Ideas/Questions

I have a 89 rs thats ready for paint. The body is done. The car is without a motor. The engine compartment is empty. I want to what you guys think I should put in there for a motor. I would like to see 450-500 hp. I am willing to spend the money for the power but I am not sure what to put in there. I am leaning towards a 350. Any thoughts and ideas would be appreciated. I just want a solid motor with some power. A good solid street motor. The only thing I have to work with is the stock tranny. I am also not sure if that tranny will hold up with that kind of power. If someone could give me pointers on that too I would appreciate it.

Does anyone think that an aftermarket tbi kit would work for what I am trying to get.

Thanks guys.
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Old Jun 23, 2010 | 01:52 AM
  #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
That is a lot of power. You can't expect stock 3rd gen drive train components to last long behind it.

Have you considered an LSx swap? Heads/cam/exhaust will get that kind of power, and do it in a driving-friendly way.
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Old Jun 23, 2010 | 02:48 AM
  #3  
xTIMBERxWOLFx's Avatar
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From: Florida
Car: 1991 Pontiac Firebird
Engine: LO3 V8-305 5.0L TBI
Transmission: Automatic
Axle/Gears: Stock
Re: Engine Ideas/Questions

that much power would turn the car into a twizzler.. welcome to the unibody club lol
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Old Jun 23, 2010 | 07:41 AM
  #4  
92firebird 305's Avatar
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From: shalimar florida
Car: 1992 pontiac firebird
Engine: 305 v8 lo3 201.5hp and 268.2 tq
Transmission: 4speed 700r4 corvette servo
Axle/Gears: 3.42 disk posi 4th gen rear swap
Re: Engine Ideas/Questions

If it was me i would do the lsx swap its the cheap and easyer way to get that power and also i have a few questions to ask my self. I have a 92 firebird with the 305 tbi l03 motor in it how do i get more power with out geting a 350 i have a chip in mine so i got like 184 hp and 280 pounds of tork
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Old Jun 23, 2010 | 03:12 PM
  #5  
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
Originally Posted by 92firebird 305
...also i have a few questions to ask my self. I have a 92 firebird with the 305 tbi l03 motor in it how do i get more power with out geting a 350 i have a chip in mine so i got like 184 hp and 280 pounds of tork
You need to post that in your own thread (you know, rules about staying on topic of the original thread). Since you aren't talking about an engine swap, the topic doesn't belong on this forum. The TBI forum would be the place to post it (after you look through the stickies and search first, of course).

Now,
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Old Jun 23, 2010 | 10:25 PM
  #6  
thirdgenguy's Avatar
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Re: Engine Ideas/Questions

I have thought about an LS1 motor. Would that be a good choice? Like one out of a 98 camaro? Is the market there for parts for those? Does anyone know if those will bolt in with the original mounts and such, or is there quite a bit of fabricating? I can get a ls1 with tranny from a friend of mine. Input would be appreciated. Thanks.

Last edited by thirdgenguy; Jun 24, 2010 at 09:33 AM. Reason: correction
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Old Jun 24, 2010 | 12:23 PM
  #7  
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
Start by reading the LS1 swap sticky in the top section of this forum. Swap parts to f-bodies are readily available. Upgrade parts availability for LSx engines is approaching Gen I SBC quickly. You can get a good set of LSx heads for no more than Gen I SBC, that will out-flow and out-power Gen I with ease.

'99-'02 f-body is the more desired choice. The larger bore LQ4/LQ9 are becoming more popular as well (still need f-body accessories).
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