[haysonj]

I didn't read this entire thread but I did have a factory engine blow a head gasket within the first 20 or 30 min. of starting. It blew between the cylinder and water jacket so the heat from the compression was going into the coolant. If you take the cap of the radiator you will see air bubbles in the coolant. I would do a compression check on the engine to see if all cylinders are equal. If not you either need to get a leak down test or just pull the heads and replace the gasket. Should only be one side.