From:Steve Thielicke e-mail:stcc@centurytel.net
Subject:RE: Super X extra spark plug hole in cylinder heads Date:Wed Jun 26 12:08:41 2013
Response to:4743

The holes on the top are not for spark plugs but for most years are a top motor mount stud, in the stream liner years it is just the front that is a mount and the rear is plugged.
Hope this helps you.
Steve


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Has anyone ever seen this before and what models had it? Looks like an extra spark plug hole cast into the cylinder heads on a '25 Super X engine that I have. Looks like it was done in the factory, not a home workshop modification.