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Old 03-06-2011, 03:51 AM
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Coolant Circulation...Need Quick Response

I have a 327 Chevy in my '49 Merc Sled. I want to disconnect the heater and eliminate it. Can I just take the hose nipple out of the water-pump and intake manifold and replace with a plug? Or should I put a heater hose from the manifold nipple to the water-pump nipple? Would I get better coolant flow and lower temperature by putting a bypass hose from the intake manifold to the water-pump?

Yours thoughts please~
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Old 03-06-2011, 05:00 AM
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Put a hose from the intake to the water pump.
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Old 03-06-2011, 05:48 AM
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I would plug them, looks better than a hose.
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Old 03-06-2011, 05:51 AM
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The Block has a Bypass for the Pump, "hole below left lower WP mounting bolt">> http://www.chevytech.info/2c42o8.html
You could drill 2 or 3, 1/8" holes in the Thermostat to help aid the bypass and just plug the WP & Manifold ports.
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Old 03-06-2011, 07:04 AM
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It is better to have a hose looped(not for looks I agree) . hook from the intake to the water pump with it. Water circulates through there as the engine warms up an running a hose would keep the engine from developing a hot spot because of no flow.wich it what you will have with no heater hose and a thermostat closed.
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