Still overheating

64dart170 said
Don't you have an overflow bottle installed yet? We have them on all our Darts. Also my sons 69 6 cyl had EVERYTHING replaced including 2 new radiators from parts store. They had micro cracks along seams. Also finally went back to the original 69 thermostat all brass. We were getiing some bad ones (New) Check them in pot of boiling water on stove. Good Luck!

The new thermostat I used is all brass. I think it was close to $12 from Summit Racing. The sad thing is that I overtorqued the bolts on the thermostat housing when I replaced it and cracked the original aluminum housing. Had to install a new cast iron one.

7demon2 said
just throwing this out here if you want to try a better radiator & shroud which will help! http://www.forabodiesonly.com/mopar/showthread.php?t=49833&highlight=recored+19'+radiator

Shroud? Should there be a shroud on my stock 71 with /6? I can't see any obvious places to attach one, but maybe it did get lost somewhere in the last 38 years. :dontknow: This car belonged to my mom, who bought it new in 71. I didn't start looking at it until I rebuilt the motor in 2003, so I don't remember if there ever was one.

This weekend I'll get to work on it a bit more. I'll try running it with the radiator cap off to check the flow. I should've done this anyway after replacing the thermostat - maybe I have an air bubble trapped in there somewhere...

Thanks for the advice,

John