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  #1 (permalink)  
Old May 26th, 2008, 05:08 PM
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Plugs for GN1'S
What plugs are u guys running besides the ngk's Thanks.
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  #2 (permalink)  
Old May 26th, 2008, 05:20 PM
278CIKILLER
  
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plugs
Auto lite 104 thats what i use.
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Old May 26th, 2008, 07:46 PM
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Autolite 103's work well also.
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Old May 26th, 2008, 07:59 PM
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Quote:
Originally Posted by Ted A. View Post
Autolite 103's work well also.
103's work great on street and strip.
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Old May 27th, 2008, 07:30 AM
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Ngk Tr6.
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Old May 27th, 2008, 08:35 AM
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Autolight 103's for the street, 3932's for big boost and c-16.

103 are tapered seat, the 3932's are gasketed.
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Old May 27th, 2008, 07:29 PM
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R42 LTS if I remember correctly
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Old May 27th, 2008, 07:56 PM
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Quote:
Originally Posted by nisnutz View Post
What plugs are u guys running besides the ngk's Thanks.
Are you running GN1's or the new GN1R's which use a smaller 12mm thread?
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Old May 28th, 2008, 05:29 AM
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Aren't aluminum heads suppose to use the gasketed plugs? Multiple plug changes with taper seat plugs will gall the head.

Billy T.
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Old May 28th, 2008, 06:07 PM
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yes I use a r 3933
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Old May 30th, 2008, 05:13 PM
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I use the autolite 103 "copper core" plugs.

when ordering, you should ask for 97+ buick 3800 plug. The series II plugs are the same (lenght, thread) for the GN1 R (LAC2) aluminum heads.
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