340 Overheat / Radiator Geyser

mitch340Duster said
1. I don't think so. It has not been driven over 30 MPH in a long time. For now, I just want to be able to cruise Lower Broadway, which is a sloooow drive with a lot of loooong lights.
2. I don't know. Probably 180. I'm installing a 160 Sunday.
3. Yeah I know. Like everything else, my aftermarket gauges are buried in storage somewhere. If I close on my property in the country Monday AND if the eviction of the current "tenant" is successful (my world), I'll be able to start setting-up a temporary garage and getting my stuff organized. It's also a 1/2 hour drive from here though.
4. Thanks

View attachment 1716302404

I gotcha. Get the thing on the hwy cruising at steady 55 to 60 for a few miles. If the temp goes down, it would point towards a possible problem with the shroud or fan not being up to snuff at idle.

205-210 is normal for most newer stuff including the magnums run at. Wondering if you accidently have a 195 thermostat installed. I don't like my engines running that hot so I always put a 180 degree thermostat in my magnum engines. Even that didn't cool down my 5.9 in my van enough for my liking so I wound up installing a big capacity aluminum radiator and electric fan set up from a Dodge Intrepid. Big difference now it will cruise at 185 all day.

Good luck with the other stuff I have been in similar situations.