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04-15-2019, 03:29 PM
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#1 |
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Registered User
Join Date: Feb 2019
Location: Centurion, Gauteng, South Africa
Posts: 227
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350: Coolant flow when t/stat closed?
My '70 C10 is not fitted with a cabin heater (yet). Beside hoses from water pump and t/stat cover to radiator, there are no other coolant hoses. 350 SBC (Gen 1 -I think...).
Am I right by saying that there will be zero coolant flow while the t/stat is closed? If I am wrong, please explain to me what route is available to coolant while the t/stat is closed.
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Best regards, Philip Chev: '70 C10 (350 V8 / 700R4 ) & '59 Apache ( 235, 3-sp ) Jensen Interceptor '74: Mopar 440(EFI'ed) / 4L60e Jaguar: '72 E-type Coupe V12 & '74 E-type V12 Convertible & '80 XJS V12 |
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04-15-2019, 05:11 PM
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#2 |
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Registered User
Join Date: May 2016
Location: Henderson NC
Posts: 975
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Re: 350: Coolant flow when t/stat closed?
You should have a bypass built into the water pump if everything is original. If it has aftermarket or vortec heads it probably doesn't have a bypass. Either way it's good idea to add a bypass hose.
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04-15-2019, 11:03 PM
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#3 |
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Who Changed This?
 
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,088
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Re: 350: Coolant flow when t/stat closed?
The water pump has a bypass built into it on those era vehicles. You could buy a truck with no heater and they worked fine without a bypass hose. I don't know about LS or Vortech, you'd have to check that out. Can you show us a picture of the engine?
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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