Yes thanks, I switched to 13 lbs.lift cap and 180F stat...lowered the upper hose so that it was below radiator fill opening......so far, OK (fingers crossed) see posts below
A crack in the heads/block would be the death nell...I am just too old to be pulling and magnafluxing heads and blocks. I hate to get rid of a truck that is almost computer free and stripped down to the bone accessories wise. I ran a business for years and had about 15 or 20 of these 318 Dodge trucks and none were newer than 1990...they all ran over 200,000 miles and we abused the hell out of them. Average mileage at full failure time was 250,000 miles. All but one A727 trannys made it the whole way. They were always overloaded and we used 2nd gear, wide open throttle often to attain and maintain speed. The engines usually dropped a valve. I changed 2 radiators and had one right front suspension complete, just ripped out of the truck...The brakes lasted 150,000+ miles.
A Dodge 318 was a hell of a truck.