My problem seems the opposite of yours.
There must be a cause or indicator why the water temp stays solid when driving below 55mph but once going above for a few miles steady, the temp is climbing to the moon.
Quote:
Originally Posted by tom s
Electric or man gauge?I just pulled a 389 with a 4 bolt water pump out of my 62 GP.I put a 421 30 over in the car with a 8 bolt and a flocooler pump.The car has a original shroud with a non thermo fan.The 389 would gain some temps too close too 230 in stop and go traffic until I put the shroud on.The 421 when I first put it in after the rebuild would get hot around town to about 200ish.Neither would get hot on the highway.The 421 now after a few hundred miles pretty much stays in the 160-180 range.Make sure your timing is inline as if the timing is retarded some they run hot.Im running 12 init and 36 total with 9.5 CR iron heads.The engine has a 068 and the engine pumps the 170-175 range.Tom
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