icanfixall
Official GMM hand model
Only use the Ford or International thermostat. Its a 192 degree stat and the only one that will flow enough coolant to keep these motors cool. Your having this kind of cooling problem. Not getting enough coolant flow. The best fan clutch comes from MS Tech in Babylon New York. They modify them to engage at 21o. The stock Ford ones sometimes engage at 240
... Not good. A 3 row dimple core radiator will not keep these motors cool either. Also the fin count on the cores is important to. At least 13 or 14 fins per inch is required. 12 wont do it either. Most aftermarket radiators are low fin count. Usually 12 fins per inch.... Buy the correct thermostat and install it first.... Then post back the results. I'm about 100 miles north of you and may be able to lend a hand if needed....