Re: Thermostat temp for 1951 288 with Ultramatic

Posted by Mopar_Earl On 2024/1/6 0:46:32

50/50 basic green coolant boiling point is 223F.

On pressurized systems, you gain 3F per psi of pressure above boiling point. So a 4 psi cap would push you 12F above boiling point in addition to the 223F coolant. So combined you'd have a boiling point of 235F.


Earl