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305 swap

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Old May 27, 2005 | 10:51 PM
  #1  
Snoman's Avatar
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Car: 87 I-Roc Z
Engine: 350 Tpi
Transmission: 700-R4
305 swap

I've got a 305 TBI, 92' rs. I've also got a 350 TPI, 87' Iroc-z.

My question is can i swap these engines,without worring about the smog control on the 92. And what i might need to do the swap. Any suggestions would be appreciated.

Thanks Jacob
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Old May 28, 2005 | 12:12 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
To the letter of the law, no, you can't. You'd have to use a '92 or later system and all the goodies.

Practically speaking, though, it can be done. Whether you have strict emissions inspection or not is the real question.
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Old May 28, 2005 | 01:39 AM
  #3  
Snoman's Avatar
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Car: 87 I-Roc Z
Engine: 350 Tpi
Transmission: 700-R4
If i pulled all the pollution control off of the the I-Roc Z would it still run corectly? If not what could we do to bypass it?
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Old May 28, 2005 | 08:41 AM
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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
Let's put it this way: You can easily transfer the IROC engine and equipment over to the RS. You should take everything, as very little of the TBI stuff will do you any good, including exhaust and fuel pump (the hard fuel lines should be the same, though).

There really isn't any "pollution control" on there that you should eliminate. The system is pretty much well tied together, and anything you would consider eliminating, with the possible exception of a factory cat, would not help performance. Transfer everything, and leave it at that.

All I was saying with my first reply is that if you have emissions inspection, you would not pass that if the person doing the inspection knew what they were doing. However, the system would work fine in your car. Don't try to get cute or fancy by removing things the McDonalds parking lot gang tells you isn't needed.
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Old Jun 16, 2005 | 11:03 AM
  #5  
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Car: 87 I-Roc Z
Engine: 350 Tpi
Transmission: 700-R4
As for the emmisions inspections i dont know if they do it in my state . If they do i havent heard of any of my friends or anybody in that case that have gotten checked. And i wouldnt do it in Mcdonalds parking lot i would do it in my shop and i dont think there is many gangs in my town. Anyways thanks and take it easy

Last edited by Snoman; Jun 16, 2005 at 11:06 AM.
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