[marvgarr68]

Do you mean plumbing the heater core inlet to the rear ports on the heads? I see know reason that would not work. You just have to make sure you connect the outlet to the water pump or the rad side tank. I am going to use the stock ports on mine when I put a heater in it. I was going to use a water to air inter cooler. I was going to use the heater ports but there would not be any cooling flow when the t stat opens. There would only be hot water.