Installed a name brand thing

[jct]

Took care of my over heating issue and no longer hot under the hood and omg does it ever flow through the radiator

 

[68PK21 440.6bbl]

I believe that is the correct one to have for the 440. What did you have in there before, the flapper valve type?

 

[65sporty]

It's a high flow thermostat, I guess in this case it was the thermostat

 

[jct]

Some crappy one from rockauto
https://www.rockauto.com/en/moreinfo.php?pk=4646628&cc=1066126

Just did not flow well to not at all and was able to open the radiator hot with no issue ¯\_(ツ)_/¯ i also put my old temperature sensor back in don't think the new one is up to snuff

So nice to see a raging river flowing through the radiator