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Author Topic: radiator hose sizes:  (Read 8384 times)

Offline Stewart G Griffin

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radiator hose sizes:
« on: June 20, 2015, 04:03:01 pm »
Would anyone happen to know what the radiator hoses sizes are?   I.D. and O.D.   for upper and lower radiator hoses for a small block?
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Offline zieg85

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    • 73-87 GM squarebody extended cab and conversions up to 91 R/V series
Re: radiator hose sizes:
« Reply #1 on: June 20, 2015, 04:30:53 pm »
not off hand but the 4.3L is smaller
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Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
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Offline Stewart G Griffin

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Re: radiator hose sizes:
« Reply #2 on: June 20, 2015, 05:21:18 pm »
It looks like 1.50" both sides for the upper and the lower is 1.75" at the radiator and 2" at the water pump.  i'm in the middle of figuring everything out right now.
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Offline Stewart G Griffin

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Re: radiator hose sizes:
« Reply #3 on: June 20, 2015, 05:33:18 pm »
Hmmm.....it looks like the 4.3 radiator hoses WILL bolt up to the v-8 radiator. :)

Not perfect but good enough to get it running.
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Offline Stewart G Griffin

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Re: radiator hose sizes:
« Reply #4 on: June 20, 2015, 06:43:46 pm »
Ok, nevermind---got the hoses connected.   Will provide a pic tomorrow maybe.
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