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NGK spark plugs..

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#19

01-03-2008, 10:45 PM

mudjnky

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Join Date: May 2006

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Re: NGK spark plugs..

I need to replace the plugs in my Wifes car and after reading this I'll give the NGK's a try. Does anyone know which plug would go in a GM crate engine 454/420HP, iron head? I'm pretty sure that wouldn't be in the NGK catalog.

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