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Old 12-13-2010, 02:48 PM   #21
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Quote:
Originally Posted by SignOfZeta View Post
I see these two paragraphs posted all over the Internet, which appear to be Bosch'* take on the matter:


For what it'* worth, I believe GM calls for iridium plugs in the L36. Many members (including myself) have no problem with coppers. Seems to have something to do with platinum itself.

There are the facts; draw your own conclusions.
I've used Champion Double Platinum plugs in my L27 before. Ran those for about 80k miles with absolutely no problems and perfect performance. Those weren't Bosch plugs though.

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Originally Posted by Human View Post
That would stand to reason. I know GM specifies iridium plugs for the Northstar. If I recall correctly, the stock AC plugs for the Northstar are re-branded Denso Iridiums.
With the Northstars, I wouldn't have it any other way. The rear plugs on the GXP are a bit involved to get to from what I've heard.

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like said i have em in my truck idk how a 3800 likes them..only one way to find out
A 3800 will not like them. I've tried it, many people have tried it, and its a bad idea. Save yourself the work and trip to the store and just get a good set of ACDelco, Champion, or Autolite plugs.
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Old 12-13-2010, 04:07 PM   #22
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there * your red flag VENDO

and i only bought them because it was one of those days where iwas super boired just sittin around watchin tv and i saw sttacey david on gearz test em in a lil machine so i figured eh why not and wen and got some lol
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Old 12-13-2010, 04:09 PM   #23
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Quote:
Originally Posted by Human View Post
That would stand to reason. I know GM specifies iridium plugs for the Northstar. If I recall correctly, the stock AC plugs for the Northstar are re-branded Denso Iridiums.
Don't know where you came up with that. GM specifies double platinum clads for almost all N* applications.
http://parts-catalog.acdelco.com/cat...&parttype=3210



They are set a .50 and Not to be regapped.

And as far as Denso being a AC vendor, I highly doubt GM would use Jap plugs. And certainly not admit to it. I hear the gamut of guesses as to who make what AC Delco Plug. And not once have I seen a credible source. AC isn't talking.
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Old 12-13-2010, 04:58 PM   #24
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Quote:
Originally Posted by sseidriver97 View Post
there * your red flag VENDO

and i only bought them because it was one of those days where iwas super boired just sittin around watchin tv and i saw sttacey david on gearz test em in a lil machine so i figured eh why not and wen and got some lol
I saw that same show with david stacey=stacey david lol
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Old 12-13-2010, 05:04 PM   #25
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well i ran the stock plugs in my 98 T/A and it never burped,not sure what they were..
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Old 12-13-2010, 09:41 PM   #26
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what would cause a slight vibration at idle in gear,put it in neutral and it goes away?
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Old 12-13-2010, 11:27 PM   #27
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start a new thread about it
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