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-   -   Plugs for 416 heads ? (https://67-72chevytrucks.com/vboard/showthread.php?t=863251)

Dan-K 03-24-2026 01:08 PM
Plugs for 416 heads ?
 
I am putting a set of #416 heads on an early 350 . What plugs are the best option ? AC used to be good or NGK ? Do I need a shorter plug to avoid interference with the piston ? Pistons are standard flat tops .


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