Hey YR I don’t think I am implying that this is a balanced cast crank as I have no clue as to what it is. I agree a balance job on a cast unit makes no sense and I doubt any machine shop would even do this.
Just trying to figure out how best to continue if I don’t know what it is. The previous guy who worked on this set up had no brains whatsoever so I am not convinced that it was set up correctly. I guess I have to pull the oil pan to get a better look at the crank to make a determination if its forged (internally balanced) or cast (externally balanced).