Reply to "Mysterious ‘China-wall’ gap"

Because the aluminum heads are brand new and the iron heads may have been milled more than once or twice in the last 45 years, I am not sure we can ever come to a definite determination as to why the gap is so large.

My engine builder has fabricated aluminum spacers, the dry fit gap is .060 and RTV silicone will take care of that quite easily.

Larry

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