Auxiliary water pump

That is a good point, does driving water through where the heater hoses would be circulate through the block and heads....just don't know.
Like I just mentioned in another post, I could do an electric water pump but it just seems like with a little creativity I could get the same results much cheaper and more specific to my application.
I probably should drain out my antifreeze and save it since its brand new, and then just do some testing with a hose and the heater core ports and see what happens.
I should add in, the flow like you mentioned, needs to go through the radiator as well as the motor to get any cooling done.