What radiator hoses do you use?

Discussion in 'High Tech Retrofits' started by 76_TypeLT, Dec 23, 2016.

  1. 76_TypeLT

    76_TypeLT Veteran Member Lifetime Gold Member

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    Jul 26, 2008
    Houston, TX
    My radiator/fan setup is through Custom Works (motor is LS376) and one of the caveats is the upper hose needs to be spliced (98-2002 Camaro hose). Could I just use a flex hose instead? I am not completely averse to splicing a pre-formed hose, but think a one-piece hose would look nicer.

    There are tons of flexible hoses available, but are there any issues with using them? Any other ideas I should consider?

    Here's a shot showing the water pump I have, just for reference.

    [​IMG]
     
  2. larrylarry

    larrylarry Veteran Member

    1,076
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    Dec 22, 2011
    San Antonio Tx
    Measure your inlet/outlet sizes. The bottom outlet on my aluminum radiator was larger than the one on my water pump so I had to order a hose from Summit. Hose is ugly I know & a bit to long but it works.
     

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  3. 76_TypeLT

    76_TypeLT Veteran Member Lifetime Gold Member

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    Jul 26, 2008
    Houston, TX
    I'd rather it work first and look nice second ;) Thanks for the info.

    Why do some water hoses have the green line on them? My heater hoses have the same thing.
     
  4. badazz81z28

    badazz81z28 Veteran Member

    13,175
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    May 4, 2001
    Las Vegas, NV
    I used a metal corrugated hose on my 78 and hated it. You need a steam line anyways. I would splice it.

    Use this
    www.finchperformance.com

    Scroll down to the steam port adapters
     
  5. 76_TypeLT

    76_TypeLT Veteran Member Lifetime Gold Member

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    Jul 26, 2008
    Houston, TX
    I have a dedicated inlet on the radiator for a steam line, so that won't be an issue.
     
  6. 71RS/SS396

    71RS/SS396 Veteran Member

    2,501
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    Aug 26, 2008
    Wake Forest NC
    The radiator and accessory drive being used is going to be a factor. I have a C&R radiator and Wegner Motorsports drive, I used the Gates 21347 for the upper and the Gates 22437 for the lower, iirc I had to do some trimming on the hoses at the ends.

    [​IMG]

    [​IMG]
     
  7. hot72rod

    hot72rod Veteran Member Gold Member

    Here is the lower hose I used.

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    Now this lower hose will work one way but if you turn it upside down it will not work. As for your top hose, I would almost think the one form a 76 v8 Camaro would work since your are using a LS3 water pump.
     
  8. hot72rod

    hot72rod Veteran Member Gold Member

    Also what side is your top outlet on the drivers or passengers?
     
  9. 76_TypeLT

    76_TypeLT Veteran Member Lifetime Gold Member

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    Jul 26, 2008
    Houston, TX
    So that is a Gates 20734 hose. I think I can use a 98-2002 Camaro upper hose, at least I was told that by someone who I trust.

    FWIW, the Gates 20734 is apparently equivalent to the Dayco 71916 hose. According to Gates, this hose fits the 1969-89 Ford E Series Van, which seems odd.
     
    Last edited: Jan 6, 2017
  10. 76_TypeLT

    76_TypeLT Veteran Member Lifetime Gold Member

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    Jul 26, 2008
    Houston, TX
    Inlet and outlet on the radiator are both on the passenger side.
     

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