Re: Need Thermostat for '47 8 cylinder

Posted by JWL On 2012/9/7 16:34:42

David, drilling a small hole in the thermostat is an old trick and a good one. As you say it helps the system to bleed air out when it has been drained and refilled. Also, the small hole allows for some circulation of coolant until the thermostat opens.

(o[]o)