/6 running hot - what are your temperatures?

Loggato said
Hey guys and gals. My '74 duster (which has been sitting many years) has reached the point where I cant drive more than 10 minutes without it getting too hot. As in, puking as soon as I shut it off. I've replaced the 22" radiator with a 24" (from A/C car), with fan shroud and also a 17" 6 blade fan. This thing should COOL. I have no thermostat and a 16# cap

So taking some temps yesterday with the gauge just shy of 250, I get:

1. Thermostat housing - 240
2. next to temp sensor - 235
3. upper radiator hose - never exceeded 220
4. lower radiator hose - never exceeded 190

I couldn't check the radiator temps because of my condenser, but it had good air flow.

What difference do you usually see between the radiator hoses?

Thanks.

Water pump impeller vanes can rot away causing no circulation.
The vane hub can also come loose (rust loose) from the shaft.
Common on engines that sat for a long time.

Puking only after shutdown isn't a head gasket, (not saying it isn't possible) but usually puking after shutdown is a weak cap or rising temps after shutdown when hot already, like yours sounds.
Your temps look like little or no circulation.
(at least pull and check the water pump)