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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

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Old Apr 3, 2009 | 07:22 PM
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Default o2 sensors
In the mix of changing out my original o2 sensors and curious to know what brand you guys suggest going with?

Thanks Elliott
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Old Apr 3, 2009 | 07:26 PM
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Originally Posted by Elliott's94Z
In the mix of changing out my original o2 sensors and curious to know what brand you guys suggest going with?

Thanks Elliott
Same as the one's you got in there now, new AC Delco's.
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Old Apr 3, 2009 | 07:45 PM
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Good deal. Didn't know if going with some NGK or Bosch would be any better.

Thanks!
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Old Apr 3, 2009 | 07:48 PM
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Delco all the way.
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Old Apr 3, 2009 | 07:50 PM
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Bosch for 3 seasons... no troubles.
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Old Apr 3, 2009 | 07:52 PM
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Damn just got off the phone with Summit...the Delco's are $70 each! Bosch were $52 and the NGK were $42. Is there really a difference is quality with a o2 sensor? Will one brand last longer then the other?
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Old Apr 3, 2009 | 07:55 PM
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I tend to stick with AC Delco for all electronic parts/sensors, regardless of the price.
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Old Apr 3, 2009 | 07:56 PM
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Originally Posted by Elliott's94Z
Damn just got off the phone with Summit...the Delco's are $70 each! Bosch were $52 and the NGK were $42. Is there really a difference is quality with a o2 sensor? Will one brand last longer then the other?
I know that when you order a mail order tune from MadTuner, they say that their tunes are specifically designed work with AC Delco o2 sensors. I have heard of both good and bad things with the Bosch units. But I have never heard of bad things about AC Delco's.
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Old Apr 3, 2009 | 07:56 PM
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As always I check on GMPARTSDIRECT and the Delcos were less expensive. Getting them! Thanks guys
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Old Apr 3, 2009 | 09:09 PM
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Originally Posted by ss.slp.ls1
I know that when you order a mail order tune from MadTuner, they say that their tunes are specifically designed work with AC Delco o2 sensors. I have heard of both good and bad things with the Bosch units. But I have never heard of bad things about AC Delco's.
Yeah, I just put my tuned computer in from MadZ and they do recommend AC Delco.

I used those when I installed my Mac headers and they work real good. I just had the egr tube bolt (on the headers) back out which set a code for Bank 2 lean exhaust. I knew the O2's were working, so I tightened the bolt up and hit it with some RTV red to mark its position. No code now.
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Old Apr 4, 2009 | 08:31 AM
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Can you still get AC Delco O2s? The last time I bought mine they came as Delfi, or is that considered AC Delco?
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Old Apr 4, 2009 | 08:45 AM
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Yeah you can still get them, they are AC Delco P/N AFS75 or GM P/N 19178930.
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Old Apr 4, 2009 | 08:47 AM
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Thanks
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Old Apr 8, 2009 | 06:30 PM
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Originally Posted by Elliott's94Z
As always I check on GMPARTSDIRECT and the Delcos were less expensive. Getting them! Thanks guys
How did those AC's work out for you? Also, that video clip in your sig is awesome. You have a quality setup there.
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Old Apr 8, 2009 | 08:56 PM
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Originally Posted by camerory
How did those AC's work out for you? Also, that video clip in your sig is awesome. You have a quality setup there.
Still on order bro. Thanks for the comments...appreciate it!
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Old Apr 9, 2009 | 06:43 PM
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Originally Posted by camerory
Yeah, I just put my tuned computer in from MadZ and they do recommend AC Delco.

I used those when I installed my Mac headers and they work real good. I just had the egr tube bolt (on the headers) back out which set a code for Bank 2 lean exhaust. I knew the O2's were working, so I tightened the bolt up and hit it with some RTV red to mark its position. No code now.
Just to let you guys know, my car was still running like crap after I tightened everything up. So I swaped the stock AC delco sensor in I had and it fixed the problem. The new cheap Borg Warner sensor I bought (suposively the same thing as Ac Delco AFS 75) took a crap. So I am only using AC from now on.
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