Spark plug question
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Spark plug question

  1. #1
    Senior Member watergun4u's Avatar
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    Jan 2008
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    Default Spark plug question

    Was wondering if someone can tell me ,which spark plug to run in these heads! was told they are peanut heads?? part# is 3917215,, any help would be great, Thanks

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  3. #2
    Member WesMark Racing's Avatar
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    you may be mistaking "peanut" for "snowflake". if they are aluminum and have a snowflake casted right above the exhaust ports, they are chevy heads that were put on a very small number of cameros. Im thinking co-po or yenko models. if they have the indication of the snowflake, your best bet would be to sell to a collector, cash out, and get a set of afr, brodix, etc.

    keep me posted because i know a guy that has a pair and could use another.



    Wes Richards, lake isabella CA

  4. #3
    Senior Member EVILFORCE's Avatar
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    Do not know anything about your build. But a car or truck plug would be like a AC 43 or R43.Those heads take a 13/16" hex 14MM X 3/4" reach gasket seat plug
    No Fool Like A Old Fool is there?

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