I'm been looking for a solution to add a threaded temp sensor for my taurus fan swap as I'm not very fond of the radiator probe type. I came across a "high flow" thermostat housing made by hesco that has an extra temp sensor hole. I don't really need or want anything "high flow" since my jeep has no issues with running hot or overheating. From what I can tell, it's just a factory housing that has been modified. Has anybody has any luck drilling and tapping their thermostat housing with any success? I've posted the link below so you can see the extra hole drilled and tapped in the housing face. I also tried searching but I can't get it to work on mobile.
http://www.hesco.us/shop.asp?action=showpic&id=146448&header=false
http://www.hesco.us/shop.asp?action=showpic&id=146448&header=false