View single post by Jim Ketcham
 Posted: 07-21-2020 11:51 am
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Jim Ketcham

 

Joined: 03-13-2005
Location: Salt Point, New York USA
Posts: 208
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 The plugs in all the heads I have seen are steel. Yellow teflon tape is for natural gas or propane. I personally don’t like using teflon tape as I have found gooey strings of it throughout engines where you really don’t want it.