340 overheating problem

340Duster247 said

Had a flex fan on last year only for a couple runs. Got hot but not as hot as it does now. Keep in mind it was cooler then.
At the start of this season I ran the electric set up u see now and it ran cooler. Ever since we pulled the engine and put it back in for the second time it's running hotter.
But it's hotter outside now.
Only changes when engine was pulled was a different cam

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it still sounds like you were chasing the running hot problem last year also.

my suggestion:

get a stock 26" A/C type radiator just to test. grab from a salvage yard or whatever.
heck even new they are like 60 bucks.

i had a 340 dart ran the piss out of it 120+mph or whatever it was fine. all i had was factory clutch fan/shroud and a 26" radiator from a car with A/C i got at a junk yard lol.