06-05-2026, 06:21 PM
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#52
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Senior Member
Join Date: May 2015
Posts: 11,658
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Re: Navarro 8ba Heads
Quote:
Originally Posted by Ziggster
For further reference, here are some pics of my stk cast iron Ford head showing the recess for the sparkplug. I have a pic somewhere with the NGK plug installed, but can’t find it right now. The clearance between the electrode and exh valve was 0.128” with a 0.055” thk Felpro gasket installed.
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