help with spark plug

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Feb 14, 2013 | 5:17 PM

shinnis

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help with spark plug

Someone help me here...I have a BB Chevy, head casting number #3964291, rectangle port-closed chamber head...CR-10:1. I am confused as to which spark plug I should use.

Feb 18, 2013 | 3:13 PM

go-part

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Chevrolet Big Block Cylinder Head Casting Numbers

Chevy 454 Spark Plugs Selection Help - Hot Rod Forum : Hotrodders Bulletin Board
^The lower responses hold the answer to your question

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