December 24th, 2022, 06:36 PM
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Senior Member
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Join Date: Dec 2020
Location: Friesland, the Netherlands
Truck: 1965 GMC 1500, 478 V6, SM420
Posts: 386
Rep Power: 183
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Re: Upper radiator hose substitute
Good news!
I've gone ahead and test-fitted the radiator hose today. The hose fits almost perfectly, with a slight twist. Nothing that will restrict flow, though. The hose needs to be shortened approx. 7/16" to fit properly in my GMC. You could shorten it more but you will lose a portion of the 1.75" section, which needs to fit over the thermostat neck.
Attached are the pictures. The tape is where I've shortened the hose. I used tape for a straight cut and fitted a large socket to keep the hose from deforming when cutting. A standard Stanley knife was used to cut the hose.
In summary: for an upper radiator hose for the 66 and earlier models, use the CONTINENTAL 60702, and shorten the 1.75" section to approximately 7/16".
Hope this works on your projects, too. Put the Flexi hoses where they belong: in the dumpster.
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