Heater hoses

Discussion in 'Magnum Engine Swaps' started by dieselman966, Jan 20, 2018.

  1. dieselman966

    dieselman966 Well-Known Member

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    I am putting a 360 magnum into my 72 scamp. I am running all of the serpentine accessories on this motor. Where are you guys running the heater hose that is under the a/c pump? The port that is that on the edelbrock air gap intake needs to be plugged because there is no clearance. Where do I need to put that heater hose now?
     
  2. rklein383

    rklein383 Well-Known Member

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    I am running v-belts on my magnum and a LD340 manifold. I used a 90 degree fitting I bought off of Ebay. I made my own brackets for the AC compressor, so maybe I have a smidgen more clearance. Just an idea. Rod

    IMG_4497.JPG
     
  3. rklein383

    rklein383 Well-Known Member

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    Picture of the entire 5.9 magnum, now 408. Rod

    IMG_4450.JPG
     
  4. 1994redram

    1994redram FABO Gold Member FABO Gold Member

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    I'll take pics of my intake. I had to plug the hole under the A/C compressor. And I drilled and tapped one of the other coolant holes bigger for a heater hose line. The tap I used was specific for cutting an NPT thread. I then used an NPT to AN fitting and an AN 45° hose barb. That's just what the local speed shop had in stock. And it works and looks fine.
     
  5. dieselman966

    dieselman966 Well-Known Member

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    There's no putting a 90* fitting on it. There is maybe a 1/2" of clearance under the a/c compressor. Looks like I'll be drilling and tapping the intake then.
     
  6. rklein383

    rklein383 Well-Known Member

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    Since I made my own brackets, I was able to get enough clearance for a 90.
     
  7. MileHighDart

    MileHighDart FABO Gold Member FABO Gold Member

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    Here’s what I did on my Edelbrock airgap
    Plugged the hole under the a/c bracket. Drilled out and tapped the next hole over

    7038B7E1-34D9-46E7-A409-8A31E4739292.jpeg
     
  8. 67Dart273

    67Dart273 Well-Known Member

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    Do you have room to "jack up" the water / stat outlet? You can get (even make) blocks under them with a fitting, and you can get "some" outlets that have a fitting in the outlet itself
     
  9. Bobzilla

    Bobzilla Well-Known Member

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    The setup on rklein383's engine is totally different than a Magnum setup. MileHighDart has it right, since the Edelbrock Magnum intakes move the thermostat housing toward the right side and the AC compressor toward the left side, like factory Magnum positions. I am assuming you are also using a factory Magnum AC compressor and aluminum mounting bracket. Done correctly, it's a clean setup.
     
  10. MileHighDart

    MileHighDart FABO Gold Member FABO Gold Member

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    I'm using and A/C delete bracket for now, but have plans for adding a/c at a later date. Obviously I'd need a different upper radiator hose at that point.
    You can see in this pic where the heater hose meets the manifold, right behind the a/c compressor mounting pad.

    IMG_0749.jpg
     
  11. dieselman966

    dieselman966 Well-Known Member

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    Just an update. I plugged the one hole in the intake under the a/c pump and drilled and tapped one of the other ones. Worked out good. I had to grind part of my bracket down to clear the plug though. I am running an upper radiator hose that is for 98 Dakota. Worked great. I forget what the lower hose is for. I found it on another thread here though.

    The radiator fan I am using is a stock truck fan. 8 or 9 blade fan. I had cut 1" off of each blade to clear the lower radiator hose. Works great and plenty of clearance.