Yes will run water. Just a little background. 80% of the pattern making time is in the water jacket cores and figuring it out,what a mission. I was not comfortable with the water flow around the plugs down the intake side so I put a water gallery in that widens the head at that point. Dissecting a typical Japanese cylinder head (masters of casting) shows very thin wall castings that take little space but a slight core shift in the common limited run, jobbing foundry means leakage before or after machining. Porosity in castings is not such an issue these days but saying that the head has extra holes in the casting for venting that get plugged. I made the intake ports very thick for extreme metal removal ! Going cross flow on such a narrow block things get crowded if you want to keep the pushrods in the original position. Many aftermarket aluminium V8 heads have surprisingly little water jacketing on the intake side I discovered.
