@01_ranger_4x4

You were correct, intake gasket is the fault.

Explanation:

Decided to use coolant sealant. Ran the truck on water and sealant till temperature rose around 240F. At that temperature water changed to steam and I could hear whistling and bubbling within the Intake. Noticed water running in front of engine and down the sides.

Will dump the rest of the water in the coolant system and attack the intake manifold tomorrow.