A 160° thermostat only limits the lowest temperature, not the upper limit which is controlled by the radiator’s ability to cool. That would also include the fan. If your cooling system could cool the coolant to at or below 160°, your thermostat would keep it at 160.
Phil Moderator, The Engine Shop, Interiors and Project Journals
1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes Project Journals Stovebolt Gallery Forum
