Quote:

My new 340 rebuild runs around 200. I found that when it hot outside it creeps up to around 205-210 while driving. I've got a new rebuilt radiator, 195 thermostat,clutch fan, eddy heads and mild cam.Others have told me it will the temp will cool down some as the motor gets more broke in.I've got around 600 miles on it right now.



I respectfully disagree, I have rebuilt many motors and have never seen them run cooler as they age.

You should be running a 180 thermostat IMO.