stop coolant gooing to the heater core

just grab a heater coolant tap from any 1972-1993+ dodge truck, there located in the heater hose under the hood and run by cable, install it in one of your heater hoses and when you need heat pop the hood and flick it one way, if you don't flick it the other way and its closed

good for those nights that might be chilly and you want to go for a cruise. it looks better then a house tap installed inline and not noticeable