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Old 12-23-2011, 07:46 PM
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84 350 overheating

have a 84 vet 350, crossfire removed, stock gm manifold elbrock 600 carb, new water-pump, new thermostat, water seems to push right thru the radiator but 15 Min's at idle 225 degrees. motor runs great but over-heats :-)

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Old 12-23-2011, 08:59 PM
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overheating..

A little more information would be helpful.. what vehicle is the motor in now? Do you have any type fan shroud in place or duct work to funnel the airflow where ir is needed? Are you using a 6 bladed fan that will flatten out and not actually move air? Are you using a thermostat and if so what temp stat is it?..
You need to keep the water in the radiator long enough for the air over the fins to have a chance to cool it. you can run a smaller pulley on the crankshaft or a larger one on the pump to slow the flow. If you are not running a exposed motor then build a shroud and seal around the radiator to pull the air through,otherwise the air will not move past the fins.after more info there may be more ideas on cooling.
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Old 12-23-2011, 09:05 PM
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Toms,

I believe the Vet had a serpentine belt with a reverse flow water pump. If a conventional water pump is installed the water will not flow correctly and the engine will overheat.

Scholman
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Old 12-23-2011, 10:03 PM
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welcome
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