1970 C60 AC Heater Hoses x 3?

[William H.]

I have a 1970 350/350 with AC. There are 2 long heater hoses 5/8" and 3/4") which I have found replacements for but there is a third hose which connects to the water shutoff valve. What is this hose called because I cannot figure out how to find a replacement. Was this hose cut from the longer hose? Thanks for any help.

[Jeffrey S.]

Re: 1970 C60 AC Heater Hoses x 3?

Bill,
Both hoses should have a molded 90* end and 1 also has a molded end at the intake. If the ends at the heater core are not molded they won't go on without kinking. The one going from the heater core to the valve is cut to length and the remaining piece goes from the valve to the intake fitting. I don't believe any of these hoses had a "GM" logo on them but did have "DL" or "X" stamp. Most repro hoses come with the GM stamp but this is easily removed with lacquer thinner. BTW- you can buy short pieces of 90* molded hoses at most any auto parts store if you just need generic heater hoses.
Jeff

[Joe L.]

Re: 1970 C60 AC Heater Hoses x 3?

I have a 1970 350/350 with AC. There are 2 long heater hoses 5/8" and 3/4") which I have found replacements for but there is a third hose which connects to the water shutoff valve. What is this hose called because I cannot figure out how to find a replacement. Was this hose cut from the longer hose? Thanks for any help.

Bill------

I was incorrect in a previous post and I've deleted it.

GM DID once offer heater hoses with molded 90 degree ends. However, all of these have now been discontinued.

Reproduction sources like Dr. Rebuild do carry molded hoses for A/C applications like yours. Also, Dayco has a 3/4" hose with molded 90 degree end under their part number 80418.