Upper radiator hose diameter (350 V8) - Impala Tech
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post #1 of 4 (permalink) Old 06-24-2009, 10:25 PM Thread Starter
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Upper radiator hose diameter (350 V8)

What is standard upper radiator hose diameter for 1970 350? Is it 38mm (1.5")? I looked at it today and the markings on the hose are gone but it looks a bit bigger than 1.5".

I am asking because I want to buy this: http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT. Unfortunately, I lost my vernier caliper.

Thanks.
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post #2 of 4 (permalink) Old 06-24-2009, 10:57 PM
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It should be 1.5". Remember, that's inside diameter, so it will look bigger.
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post #3 of 4 (permalink) Old 06-26-2009, 12:03 PM
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It also gets bigger with rot as the hose begins to stretch and not spring back (it was made of rubber back in the sixties). I use silicone hose that was used as standard equipment on all 9C1 cop cars (factory used green) for my hoses on my cars (Goodyear High Miler hose which is blue in color and requires special stainless steel worm drive hose clamps). Silicone hose will last as long as the car (it is basically plastic and doesn't rot).

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post #4 of 4 (permalink) Old 06-26-2009, 01:03 PM Thread Starter
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Thanks for replies.

I need to cut my hose to install the sensor adapter so for now I may just go with rubber hose since that's easy to cut. Later when I mount the sensor in intake I may upgrade to silicone one.
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