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Technical Small aluminum radiator for Flathead v8 through summit

Discussion in 'Traditional Hot Rods' started by flyin flattie, Jun 11, 2022.

  1. flyin flattie
    Joined: Oct 13, 2005
    Posts: 602

    flyin flattie
    Member
    from Redmond OR

    Hey everyone I’ve been on the hunt for a solid radiator that doesn’t cost 2,500-3,000 like I’ve been quoted. The car Im building has a pretty stock late 36 motor with a 5 speed so low rpm and I’ll make a shroud along both sides to force all air through the core.I’m hoping someone has used this radiator and had good results.

    https://www.summitracing.com/parts/rad-stf907ak

    thanks for the help
     
    Tow Truck Tom likes this.
  2. flyin flattie
    Joined: Oct 13, 2005
    Posts: 602

    flyin flattie
    Member
    from Redmond OR

    B7AEF61E-E44B-4659-A5FB-5309787E6DFE.jpeg Here’s the rig it will fit in!!
     
  3. Who have you contacted for building a radiator
     
  4. flyin flattie
    Joined: Oct 13, 2005
    Posts: 602

    flyin flattie
    Member
    from Redmond OR

    Brass works wanted to build me a duzzy for 3,000 and there’s radiator supply house that hasn’t gotten back but any radiator starts at 1,600 so I imagine at least 2,000 for having a custom size and such.
     
  5. flyin flattie
    Joined: Oct 13, 2005
    Posts: 602

    flyin flattie
    Member
    from Redmond OR

    I will thanks for the advice! I am interested in others thoughts on this cold case radiator. It will fit perfectly into my grille shell so I’d like to know if anyones tryed it.
     
    anthony myrick likes this.
  6. sloppy jalopies
    Joined: Jun 29, 2015
    Posts: 5,256

    sloppy jalopies
    Member

    if you buy an aluminum radiator make sure the 90*bracket for the rad support rods has a small tab welded from it's top to the tank...if not get one welded on... forming a box if you will...
    at speed the rad pushes back against the rods... without the small bracket this wants to bend the 90* up...
    bent aluminum will leak with time... get it done when new and clean...
    cost me $25 each... did my project rad and my spare...
     
    Algoma56 likes this.
  7. SPEC
    Joined: Feb 1, 2021
    Posts: 917

    SPEC
    Member

    Brice Thomas radiators are the best quality and reasonable price.
     
  8. dirt car
    Joined: Jun 26, 2010
    Posts: 1,545

    dirt car
    Member
    from nebraska

    Not sure my pm posted , however ck the craigs list Souix City Ia. listing
     
  9. flyin flattie
    Joined: Oct 13, 2005
    Posts: 602

    flyin flattie
    Member
    from Redmond OR

    I’m just curious if anyone has tryed this radiator though. I’ve used cheap aluminum radiators before and had bad luck. It was a really cheap eBay no name one though so I’m hoping this might be better.
     
  10. hfh
    Joined: Oct 22, 2012
    Posts: 508

    hfh
    Member
    from Western MA

    Wizard Cooling in New York State made me a nice aluminum radiator for my flathead. I sent them a wooden design and they copied it very nicely.
     
  11. Can’t answer for that brand.
    What is the core design?
    Large flues or small like a copper one?
    I do know the Brice Thomas aluminum ones use a HD core. The same cores they use on their big truck radiators. The flues are large.
    The 2 I’m running are working great.
     
    Algoma56 likes this.
  12. cabong
    Joined: Nov 29, 2005
    Posts: 922

    cabong
    Member

    Just food for thought. I have a 4-core copper radiator that I ran in my little vintage road race special. I ran a "60", but a very modified little bugger, and I ran the piss out of it. Like 110mph on the uphill straight at Laguna Seca. I swapped it out for an aluminum unit just for the weight. The outlets might have to be modified, but the price it right. radiator.jpg .... I'm between Boise and Ontario..... I just noticed the outlets appear to be the same as the big flatties... The big one is out of a '53 passenger car. The little one is 19.5" wide and 18'5" tall..
     
  13. prpmmp
    Joined: Dec 12, 2011
    Posts: 1,132

    prpmmp
    Member

  14. I have no knowledge on this particular radiator, but for the price I'd say it's worth the gamble. the main question is how far along with your build are you? If you're close to being able to run it, go for it. If itll sit for years before you can test it, you might be better off springing for a known entity now and not having to change it out later, which will probably entail a lot more work and the redo of some other expensive stuff. But..... for roughly $1,500 savings, why not? I'd venture a guess that $1,500 could go a long ways in other areas of your build. JMHO
     
  15. Size does matter! Maybe. Matching COOLING CAPACITY to cooling need is what really matters.

    Ben
     
  16. flyin flattie
    Joined: Oct 13, 2005
    Posts: 602

    flyin flattie
    Member
    from Redmond OR

    I totally agree I want to have the thickest core possible snd a 2 row core doesn’t sound up to snuff but msn I’m tempted to try we will see.
     
  17. Budget36
    Joined: Nov 29, 2014
    Posts: 15,047

    Budget36
    Member

    Hey Anthony, since you have two of their radiators, are they welded Or epoxied?
    Is there a warranty on leaks/etc?
     
  18. Welded.
    I never asked about a warranty
    I’ll Check
     
    Budget36 likes this.
  19. The row count is copper thinking. Aluminum is different
    I have a 2 row aluminum in my bus. 7k pounds, 500 inch engine. Mechanical fan and no shroud.
    185 degrees on a hot day in traffic. Cools better than the 3 row copper it had.
     
  20. choptop40
    Joined: Dec 23, 2009
    Posts: 5,742

    choptop40
    Member

    those newer style aluminum unit 2 core cool as good as 4 core....the tabs are the issue so mounting is easier,,,,...you can also lay it down 30 degrees or so to get hood clearance like early corvettes did......nice hot rod by the way....
     

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