radiator overflow line? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Daves72'GMC · 05-06-2006, 10:10 PM

Where can I get one of the thin black overflow hoses that are attached just next to the radiator cap and runs down the side of the radiator. I checked a couple of different auto part stores and they don't carry them.Thank you.

Aarons72s · 05-06-2006, 11:30 PM

If I remember right i used a peace of fuel hose on mine. I don't remember the exact size but I can look tomorrow if you want. I hope this information can help you out.

Robert1970C20rstbukt · 05-06-2006, 11:40 PM

I used 3/8" gas line for the overflow my truck, the port for it should be the same for all radiators on these trucks.

Daves72'GMC · 05-07-2006, 12:16 PM

The kind I'd like to use is the black thin line.Just wondering if someone knew where I can get some. Thank you.

BubbaGreen · 05-08-2006, 01:07 AM

www.classicindustries.com use to sell it, dont know if they still do. Another excellent source is go to a salvage yard and poke around, most of the 88 and up chevy trucks have at least 3~4 ft piece, clean the hose up and it should last a long time. GM may sell it, but I am sure its overpriced. The thinwall stuff is a bit hard to find *new*

05-06-2006, 10:10 PM	#1
Daves72'GMC Registered User Join Date: Mar 2003 Location: Asheville, N.C Posts: 952	radiator overflow line? Where can I get one of the thin black overflow hoses that are attached just next to the radiator cap and runs down the side of the radiator. I checked a couple of different auto part stores and they don't carry them.Thank you.

05-06-2006, 11:30 PM	#2
Aarons72s Registered User Join Date: Apr 2006 Location: oklahoma Posts: 10,669	Re: radiator overflow line? If I remember right i used a peace of fuel hose on mine. I don't remember the exact size but I can look tomorrow if you want. I hope this information can help you out.

05-06-2006, 11:40 PM	#3
Robert1970C20rstbukt Registered User Join Date: Jun 2004 Location: Beeville, Texas Posts: 1,943	Re: radiator overflow line? I used 3/8" gas line for the overflow my truck, the port for it should be the same for all radiators on these trucks. __________________ RJD 1984 Chevrolet C30 welding truck 454/SM465 1977 GMC C15 pickup 350/TH350 1970 Chevrolet C20 pickup 350/TH400 1970 Chevrolet K20 Suburban 454/TH350 1969 GMC 8500 478M V6/5 spd winch truck

05-07-2006, 12:16 PM	#4
Daves72'GMC Registered User Join Date: Mar 2003 Location: Asheville, N.C Posts: 952	Re: radiator overflow line? The kind I'd like to use is the black thin line.Just wondering if someone knew where I can get some. Thank you.

05-08-2006, 01:07 AM	#5
BubbaGreen Senior Member Join Date: Mar 2001 Location: Cedar Park, TX Posts: 686	Re: radiator overflow line? www.classicindustries.com use to sell it, dont know if they still do. Another excellent source is go to a salvage yard and poke around, most of the 88 and up chevy trucks have at least 3~4 ft piece, clean the hose up and it should last a long time. GM may sell it, but I am sure its overpriced. The thinwall stuff is a bit hard to find new __________________ 71 Chevy C-10 SWB Fleetside RamJet-350/4L60e & Compushift/3.73Posi See it at www.prismnet.com/~grzanich

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