I removed the heater core and for the simplification of the under hood stuff, I just blocked the ports on the lower intake and on the radiator. I used a short section of heater hose, a short stainless screw and a clamp.
thanks guys...my truck is starting to look like a truck from the 60's. no a/c, no cruise control....just a motor. kinda nice not having all that shit crammed in there!!!!