These high performance thermostats are designed to resist large variations in coolant pressures that occur at high RPM's where coolant temperature and coolant pressure fight for control of the thermostat keeping it from opening at its designated temperature. The balanced HP thermostat features all brass and copper construction, and opens at the right temperature regardless of engine RPM. Product Features:Constructed of copper and brassOpens at 195 degreesIt is designed for high coolant flow
