Thread: Earlies date for 3964291 L78/L72 heads?
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Old 07-02-2008, 07:45 PM
bigchevydaddy bigchevydaddy is offline
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Default Re: Earlies date for 3964291 L78/L72 heads?
Are they big or small sparkplug? Wouldn't the small 'peanut' plugs mean a later manufacture date?
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