I have a question regarding the cooling. The coolant port on the deck to the water pump is clearly smaller than stock and restricting flow to the suction side of the water pump- is there a reason this could not be made larger? This is not where you want a flow restriction.
powertrip There are no issues with this. Best (worst?) kept secret in engine design world is that the thermal transfer properties of A356 is a large multiple of cast iron.
You can run blocks with skinny water jackets and still cool better.
Most of the cooling is in the cylinder head and top of the bore.
