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  #1  
Old September 19th, 2021, 05:55 AM
Oldcarcat Oldcarcat is offline
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Default Question about coolant....

How much coolant does it take for for a 1966 GMC truck V6 305 engine?
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  #2  
Old September 19th, 2021, 07:07 AM
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Ed Snyder Ed Snyder is offline
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Default Re: Question about coolant....

Quote:
Originally Posted by Oldcarcat View Post
How much coolant does it take for for a 1966 GMC truck V6 305 engine?
Eight Gallons
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Old September 21st, 2021, 06:46 PM
POWERSTROKE POWERSTROKE is offline
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Default Re: Question about coolant....

WOW! That's a LOT! GMC always advertized their V-6's circulated a LOT of coolant. Definetly built for heavy-duty use.

My 7.3L PSD also holds 8 gallons of coolant.
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Old September 22nd, 2021, 06:19 AM
Oldcarcat Oldcarcat is offline
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Default Re: Question about coolant....

Mr. Ed Snyder, thank you!
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Old September 24th, 2021, 03:08 AM
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LEWISMATKIN LEWISMATKIN is offline
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Default Re: Question about coolant....

Quote:
Originally Posted by Ed Snyder View Post
Eight Gallons
That is if you aren't running an oversize radiator and heater core. if you are, add between 1/2 to 1 gal. to what Ed has said.
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