Originally Posted by GTJIM
...That hole has been plugged at the factory by driving an ali plug into it...
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Are you certain that this particular plug is aluminum? I know that the cam bearing oiler holes are plugged with aluminum plugs, but I think that this plug looks like steel.
Has anyone ever removed this particular plug. On my CIH's, I had all the aluminum plugs drilled out and the holes tapped for threaded plugs, but this one is still "as is"