Mr. Gasket 160 Degree Thermostat for 1965-1973 Mustangs with a 6-Cylinder Engine and 1965-1995 Mustangs with an 8-Cylinder Engine.Install this 160 degree direct replacement thermostat to prevent serious damage to your engine. A faulty thermostat could cause loss of coolant flow and incorrect temperature readings. Your engine needs to maintain optimum operating temperature to operate at peak performance. Mustang owners tend to install 160 degree thermostats when they race their cars. This lower temperature rating means the thermostat will open sooner to start cooling the engine quicker.
Features a copper "hat" that seals against a bypass restrictor plate inside the block. This closes the bypass circuit when the thermostat opens, so that all coolant has to go through the radiator. This keeps the temperature from fluctuating too much, thus causing overheating.
Mr. Gasket balanced high performance thermostats feature brass and copper construction and open at the correct temperature regardless of RPM. At high RPMs, coolant temperature and pressure fight for control of the thermostat, keeping it from opening at its designated temperature. This high performance thermostat is designed to resist the large variations in cool pressures that occur at high RPMs.
- 170 Cubic Inch 6-Cylinder
- 200 Cubic Inch 6-Cylinder
- 250 Cubic Inch 6-Cylinder
- 1965-1973 Big Block and Small Block V8 Except 351C
- 1974-1995 V8
Replace the thermostat during regular tuneups to keep your engine working smoothly. Thermostats tend to stick or provide faulty operation after years of service. Adding new coolant with the thermostat will help keep your engine running at it's proper operating temperature.
*Does NOT fit 351C engines.
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Will the RT 160 Thermostat Fit a 1965 390 FE? The thermostats seem to come in 2 sizes a smaller diameter and a larger. I need the larger.
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