Hey all, I just installed a new thermostat, thermostat housing, and replaced both block drain plugs. Just ran the truck for probly a total of 20 minuets and it got up to about 250 degrees. And I put in a 180 degree thermostat. Also have put in about 3 gallons of dex cool. And everything worked fine before I put in new a new knock sensor and drain plug. Stayed right at 180 when driving it.