November 25th, 2020, 04:52 PM
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Senior Member
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Join Date: Jan 2013
Location: Potter Valley, CA
Truck: 1960 3/4, 4 spd, stepside
Posts: 171
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Thanked 11 Times in 7 Posts
Rep Power: 123
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Re: GMC’s 1960 V-6-powered trucks were the original professional grade
Ed
Even 135 sounds high.
That works out to recirculation of all coolant every 18 seconds, which would be the time for total loss if the top hose goes.
It is a pretty big pump though.
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