Need help perfecting the budget build hemi swap

Haha, I suppose that's one possible way to do it, so long as you keep the tire topped off. And I've seen the cable operated setup as well. I think some cars try to modulate the temperature with the valve as opposed to air doors and flow over the heater core. Haevn't seen a bypass one style personally, but it makes sense. I've been running my 67 without any valve that I know of since I got the car with no issues (both before and after engine swap). There's some variety of control mechanism driven by the temperature cable, but it's directly mounted to the heater box, so I'm guessing it's more of an air door than a coolant valve. My floorboards never feel that hot, then again my engine doesn't get very hot either, one of the few lucky things I've had with the car so far, lol.