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Quote:
Originally Posted by ron hebb
hi I have a spark plug question.
what would be the best spark plug brand and # to use in a 1937 ford engine ?
the engine is a 221 with alum heads .
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I've heard but don't know if its internet fiction but you should always thread new plugs in a cast iron head to remove any burrs on the plugs so as not to damage the threads in the aluminum heads. Again don't know if its BS or not but it couldn't hurt.