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Board index » 1997-2008 Grand Prix Discussion » 3800 Engine L36/L26

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essextrain
 Post subject: Spark Plug Confusion
PostPosted: Tue May 18, 2010 1:12 am 
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Name: Alex
the more I learn about spark plugs the more confused I become

on a naturally aspirated L26 engine, no engine mods at this time

platinum, copper or iridium

606, 605 or 104

acdelco, autolite or ngk

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The Radius Kid
 Post subject: Re: Spark Plug Confusion
PostPosted: Tue May 18, 2010 8:04 pm 
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Stock stule Iridiums should be fine.
I use them with no problems and I'm slightly modified.

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OnMy2ndGP
 Post subject: Re: Spark Plug Confusion
PostPosted: Tue May 18, 2010 8:19 pm 
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I used Platinum & Iridium ACDelcos on my old N/A '99 GP with great results. I believe you want to stay with the stock range (AutoLite 606) plat or irid. BTW, those #'s that you listed are AutoLite #'s.
I felt like you for a second too after getting this GTP...lol! Now, I've researched that Copper is the way to go for these GTP's.

Here's ZZP's chat to throw in some more confusion: https://www.zzperformance.com/grand_pri ... php?id=238

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buftman
 Post subject: Re: Spark Plug Confusion
PostPosted: Thu Jul 22, 2010 12:50 am 
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AC Delco iridium!!

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coolasice
 Post subject: Re: Spark Plug Confusion
PostPosted: Thu Jul 22, 2010 4:53 am 
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I've always used bosch platinums in all my cars

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bigdog9191999
 Post subject: Re: Spark Plug Confusion
PostPosted: Thu Jul 22, 2010 7:13 am 
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link no work for me..

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Board index » 1997-2008 Grand Prix Discussion » 3800 Engine L36/L26

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