I started my charger this morning after unloading from the trailer, walked away to go get a wrench from the garage, gone about 5 - 10 min or so. when i came back to get to the car i noticed the temp gauge at 255 degrees. My electric fan never came on. Found the relay failed. Would that 255 - 260 degree coolant temp hurt the motor? Its a 440 ,trick flow heads. never runs hot otherwise. I did a compression test all cylinders at 210 - 215 psi.
Anyone have a similar experience ?
Did similar thing twice just last year. Left a little cruise in place in my low 11 sec 360 powered 69 Dart.
Pulled out after dark, and forgot to turn on both the electric water pump and fan. Got back to my shop with the car before i noticed it... was at 250-260....
Did the exact same stupid thing about a month later. Went to same place, did same thing
Raced the car afterwords, extensively, zero issues. Probably 60-70 passes, and more street driving. Car was fine.
Pulled the heads off over this past winter, everything looked great. Got very lucky.
Since have sold the motor and installed a small block stroker in the car
