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Old 06-05-2026, 06:21 PM   #52
petehoovie
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Default Re: Navarro 8ba Heads

Quote:
Originally Posted by Ziggster View Post
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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