Re: Spark Plug Protrusion into Head?
Unfortunately, Gary (GOSFAST) is no longer with us. You are correct; Offenhauser heads are problematic, in that there seem to be no spark plugs that fit them correctly. I believe that "flatjack9" on this forum may have the spacers you need. Hopefully, he will chime in.
I have been thinking about this and you may consider having the head "spot-faced" on the exterior to allow the use of 1/2" reach plugs.
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