stock spark plugs for vortec 8100

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07-04-2007, 05:05 PM

scottdarling

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Join Date: Jul 2007

Posts: 6

stock spark plugs for vortec 8100

what is the true stock sparkplug for a 2003 8.1 vortec

07-04-2007, 08:29 PM

superddd

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Join Date: Mar 2007

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Posts: 112

RE: stock spark plugs for vortec 8100

I'm almost sure they're made by AC Delco, but I'm not sure what style they are.

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