My Cadillac motor has a factory 454 TBI to Quadrajet adapter with the heater built in. I have it teed into the heater hose, but I would like it to shut off about 160 degrees or so. Does anyone know of an inline thermostat that is normally open and closes at a set temp? Plenty of the opposite available. Preferably with a 5/8 heater hose connections. I might even be able to use some sort of valve with an electrical switch.
