Heater core hose routing and question

Discussion in 'The Bench' started by Ross Fisher, Oct 2, 2020.

  1. Ross Fisher

    Ross Fisher Stage 1 Fun

    1970 Buick GS Stage 1 - heater core hoses have not been on car since I bought. I was looking to see if anyone could provide a good photo or how they should route and look. I think there is a common clip to hold them both together (?) and if so I need to find that.

    Also, is there a flow control function/part needed on the smaller hose? The '70 shop manual references this for the 350 and 400 engines, but the information is lacking for the 455 engine. So, I wasnt sure. Thanks for the help!

    Ross
     
  2. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    AC or non AC car?
     
  3. Ross Fisher

    Ross Fisher Stage 1 Fun

    Non AC car. Ha ha.
     
  4. Ross Fisher

    Ross Fisher Stage 1 Fun

    Thanks.
    - Not ha ha! Autocorrect strikes again.
     
  5. Brett Slater

    Brett Slater Super Moderator Staff Member

    This is what a non-air car looks like.

    20190902_184357.jpg

    The hose coming off the lower outlet of the heater core attaches to the intake.

    20200417_084624.jpg

    The non-air only clip you need that bolts to the intake and holds the 2 hoses is this one:

    20200407_141507.jpg

    The correct ribbed hoses are available from groundup.com and I think TPP is carrying them now as well.
     
  6. Brett Slater

    Brett Slater Super Moderator Staff Member

    Also, the correct clamps are 3/4 and 5/8 Corbin clamps.

    20180622_112401.jpg
     
    12lives likes this.
  7. Ross Fisher

    Ross Fisher Stage 1 Fun

    Thanks guys!
     

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