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305 manifolds/O2 sensor, hook up to LT1?

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Old May 25, 2004 | 06:46 PM
  #1  
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From: ATX
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Engine: Classified
Transmission: T56
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305 manifolds/O2 sensor, hook up to LT1?

Ok, well I NEED my car up and running as soon as possible. So I've decided to put the LT1 and T56 in stock, and I was wondering can I reuse my stock 305 TBI exhaust manifolds and y-pipe? If so, will the O2 sensor hook up to the LT1 harness?
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Old May 25, 2004 | 08:05 PM
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Re: 305 manifolds/O2 sensor, hook up to LT1?

Originally posted by tamatt27
Ok, well I NEED my car up and running as soon as possible. So I've decided to put the LT1 and T56 in stock, and I was wondering can I reuse my stock 305 TBI exhaust manifolds and y-pipe? If so, will the O2 sensor hook up to the LT1 harness?
Yes you can re-use your stock exhaust. It is not a good idea but I bet you knew that. The 02's are different.
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Old May 25, 2004 | 09:08 PM
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Yeah, I know. It'll be a temporary solution. I just wanna know if it will work without major mods, and damage. What's wrong with the O2 that it won't work on the LT1? Can it be rigged temporarily?..i hate myself for saying that, but I'm desperate
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Old May 25, 2004 | 09:42 PM
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by tamatt27
Yeah, I know. It'll be a temporary solution. I just wanna know if it will work without major mods, and damage. What's wrong with the O2 that it won't work on the LT1? Can it be rigged temporarily?..i hate myself for saying that, but I'm desperate
Well depending on what year LT1 you have you will need more than 1 02. I can't remember if it is a 2 or 3 wire 02 off hand. I would send a PM to z28ri*er or texaslt1

Rplace the * with a c. I could not type in his name for censoring reasons.
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Old May 25, 2004 | 10:51 PM
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Completely different on the O2 sensor, you can run it without them if you REALLY have no other choice, manifolds wont cause any harm but for the passenger side to put an O2 in you'd need a weld fitting.
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Old May 26, 2004 | 08:35 AM
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Ko man, thanks man. I'll just wait for headers to put it in...
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