yes, it runs water, but welding was the story,,, the truth was I was working with GMPP and I personally went to the GM's foundry in Toluca Mexica and Had the heads cast. I Had them remove the water jacket and the ports and chamber. They literally weighed 200+ lbs each. There were 7 castings. I know where every one of them is. With today's CNC machines those casting could be even better. Al Weiss Carved that head by hand on a mill.
