Mr Gasket 4365 High Performance Thermostat 195º F Application: GM / Ford / AMC Chrysler Slant 6 and 1979-1989 Mopar 318 & 360 V8 Opens at 195 Degrees Designed to Resist Large Variations of Coolant Pressure at High RPM Opens at Correct Temperature Consistently Regardless of Engine RPM For High Performance Street, Drag Race, and Oval Track Copper & Brass Construction - Resists Corrosion High Flow |