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Featured Technical Radiator core shortening- Can it be done?

Discussion in 'The Hokey Ass Message Board' started by jordabennett, Dec 6, 2025.

  1. RMR&C
    Joined: Dec 26, 2009
    Posts: 4,946

    RMR&C
    Member
    from NW Montana

    Great! Did you make a video? I'd like to see all the details of the process
     
    jordabennett likes this.
  2. RodStRace
    Joined: Dec 7, 2007
    Posts: 8,961

    RodStRace
    Member

    Amazing work, you proved all the naysayers including me wrong!
    Better be careful, you have become known now for this skill. People will flock from all around for you to do custom radiators for them!
     
  3. Joe Blow
    Joined: Oct 29, 2016
    Posts: 1,873

    Joe Blow
    ALLIANCE MEMBER

    If this whole hot rod thing doesn't work out for you.....you've got a pretty bright future as a surgeon.;) Just incredible work man!
     
    jordabennett and firstinsteele like this.
  4. Tim
    Joined: Mar 2, 2001
    Posts: 20,379

    Tim
    Member
    from KCMO

    I mean guys he put an airplane engine in a vw and made it looks like it was supposed to be there. Was there ever any doubt?
     
  5. patsurf
    Joined: Jan 18, 2018
    Posts: 2,568

    patsurf

    EXTREMELY impressive job there!
     
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  6. theHIGHLANDER
    Joined: Jun 3, 2005
    Posts: 10,737

    theHIGHLANDER
    Member

    This is it right here. Once you find that suite in your head that says "... and somebody did it already so, so can I." you've pretty much cut a perfect light in a drag race. Awesome, sometimes it just takes having the will to dive in. Hell of a dive...
     
  7. stuart in mn
    Joined: Nov 22, 2007
    Posts: 2,803

    stuart in mn
    Member

  8. Thanks guys, really do appreciate the kind words, it could have been a much different story but I wasn’t taking No for an answer!
    Update: Side straps cut and welded, lower strap has fitted and soldered in. Time for a little bath and a small amount of pressure to the tank to see if there are any leaks.
    Testing, paint and fitment tomorrow.
    IMG_4249.jpeg IMG_4250.jpeg IMG_4251.jpeg IMG_4261.jpeg IMG_4263.jpeg IMG_4264.jpeg IMG_4266.jpeg IMG_4267.jpeg
     

    Attached Files:

  9. Tim
    Joined: Mar 2, 2001
    Posts: 20,379

    Tim
    Member
    from KCMO

    Looks bang on. Good job man :)
     
  10. pprather
    Joined: Jan 10, 2007
    Posts: 8,992

    pprather
    Member

    Very impressive radiator mod!
     
    jordabennett and RodStRace like this.
  11. Jeff34
    Joined: Jun 2, 2015
    Posts: 1,259

    Jeff34
    Member

    Looks awesome! Great work!
     
  12. RodStRace
    Joined: Dec 7, 2007
    Posts: 8,961

    RodStRace
    Member

    The car shots look like someone is scanning!
    Again, outstanding work, above the average bear.
     
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  13. bchctybob
    Joined: Sep 18, 2011
    Posts: 6,041

    bchctybob
    Member

    Did I miss it? What did you use for gas, torch, flux and solder?
    Great job. I’ve always wanted to try that, with radiator shops a thing of the past it seems like a worthwhile skill.
     
    jordabennett, Tim and Joe Blow like this.
  14. Joe Blow
    Joined: Oct 29, 2016
    Posts: 1,873

    Joe Blow
    ALLIANCE MEMBER

    Think he's going to make a video on it Bob.
    https://bennettscustomsco.com.au/blogs/news
     
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  15. So today I managed to get the radiator pressure tested, I 3D printed a couple plugs and taped then into the in/outlets. (These didn’t hold incredibly well) but received 15 pounds of pressure which was enough. I had one small pin hole leak I could hear prior to submerging the trans which was an easy fix. Small dob of flux and solder and she was sealed.
    I put the bottom into a plastic container full of water pressurized it and wala. NO LEAKS!

    If we rewind to when we installed the header plate I used soapy water and pressurized air to find two small holes between the tube and plate. Those fixed before putting the tank on. So a total of 3 pin holes all sealed and rectified before submerging. This I was humbled by and definitely smiled not seeing any bubbles.

    Mocked up to the car it fits great and the height is spot on.

    Next will be too spot weld the bottom tabs. Clean and paint radiator then fit.

    IMG_4322.jpeg IMG_4323.jpeg IMG_4324.jpeg IMG_4328.jpeg IMG_4325.jpeg IMG_4329.jpeg
     
  16. Graham08
    Joined: Oct 2, 2007
    Posts: 155

    Graham08
    Member

    Amazing work, thank you for do***enting and sharing!

    I've built aluminum radiators, never copper/br***. One thing I did for pressure checking was to make some short tubes that have a bead rolled on them, and a welded cap. They attach to the radiator with a short piece of hose and hose clamps...which will hold the same pressure as they will in the car without blowing off.
     
  17. 05snopro440
    Joined: Mar 15, 2011
    Posts: 3,030

    05snopro440
    Member

    People trying to discourage a craftsman like Jordan from shortening a radiator he already owns clearly hadn't seen what he's able to accomplish.

    @jordabennett The radiator turned out great! Thank you for do***enting and sharing this stuff with us on here and on YouTube, and showing what can be accomplished. You're a great example of what can be done with creativity, attention to detail, some natural (and learned) ability, and determination. We need more hot rodders like you.
     
    porkshop, RodStRace, Algoma56 and 2 others like this.
  18. 19Eddy30
    Joined: Mar 27, 2011
    Posts: 4,017

    19Eddy30
    Member
    from VA

    @05snopro440
    There where severall of us that know it can be done,
    I like to know what type of soldering
    Technique used ,
    Micro jewelry Oxygen /ACETYLENE set,
    Soldering iron ,
    Or
    Small tip Hairson / Victor set.
    For testing for leaks we used rubber plumbing caps & clamp , radiator supplier actually made rubber caps pricey compared to going to a plumbing store. A decent worm clamp will hold easy 80 psi.
    How many hrs spent to do Job ?
    Customer or for personal project ?
    Any Materials outside of solder needed to be purchased?
     
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  19. 05snopro440
    Joined: Mar 15, 2011
    Posts: 3,030

    05snopro440
    Member

    Again, Jordan isn't your average HAMBer. Most would still be contemplating it. He's all done.
     
    Last edited: Dec 17, 2025 at 5:46 PM
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  20. 19Eddy30
    Joined: Mar 27, 2011
    Posts: 4,017

    19Eddy30
    Member
    from VA

    Yes I understand , I have done radiator work 7 years old to about 17 ish ,
    I learn almost something new every day
    I just like to know how each tubs where tested before tank installed and tested , & how ,the method he use to solder each tube to the tank plate,
    From my understanding he did not use a bath of molting solder so he did each tube individually what style tip size and was it the jewelry micro torches.
    Its not like there a 1 inch space between each tub .
     
    Algoma56 likes this.
  21. hotrodA
    Joined: Sep 12, 2002
    Posts: 7,373

    hotrodA
    ALLIANCE MEMBER

    Last edited: Dec 18, 2025 at 8:28 AM
    porkshop and Johnny Gee like this.
  22. patsurf
    Joined: Jan 18, 2018
    Posts: 2,568

    patsurf

    porkshop likes this.
  23. 19Eddy30
    Joined: Mar 27, 2011
    Posts: 4,017

    19Eddy30
    Member
    from VA

  24. chrisp
    Joined: Jan 27, 2007
    Posts: 1,343

    chrisp
    Member

    I don't think it's trying to discourage him, it's that it's an expensive part that can most likely be resold for close to the same price as the one he needs, there's a real risk to fail and then to cough up the money to buy another one.
    Right now I'm modifying a valve cover that sells new for $1200 used one are usually cheap because they are cracked and difficult to repair.
    It's just that I'm willing to take the chance to risk destroying my good valve cover eventhough I can't afford a new one.
    I'm pretty sure Jordan knows what he can or can't accomplish and he felt confident enough to try it on an expensive part and he nailed it.

    Jordan why did you choose cutting the straps rather than moving the lower brackets up and shortening the excess material? Time I suppose?
     
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  25. Happydaze
    Joined: Aug 21, 2009
    Posts: 2,387

    Happydaze
    ALLIANCE MEMBER

    Video short on YouTube. Impressive stuff!

    https://youtube.com/shorts/EGgO7QMOIes?si=3W3Om6vr7X-j1TKk

    Edit there's a lot more information in the full video, as you'd expect!

    Dis***embly utilised a cutting torch (no triggered O2!!!), rosebud and a Mapp gas torch.

    Do watch the vid if you can. Informative, enjoyable and superbly done. Nice pace to it too with some cool tunes.

    Chris
     
    Last edited: Dec 19, 2025 at 6:29 AM
    alanp561 and porkshop like this.
  26. stuart in mn
    Joined: Nov 22, 2007
    Posts: 2,803

    stuart in mn
    Member

    Every one of his videos is like a master cl*** in how to fabricate things. :)
     
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  27. Moriarity
    Joined: Apr 11, 2001
    Posts: 37,627

    Moriarity
    SUPER MODERATOR
    Staff Member

    This confuses me, How did you use air pressure to check for leaks before the tank was put on?
     
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  28. Damon777
    Joined: Jan 7, 2022
    Posts: 162

    Damon777
    ALLIANCE MEMBER

    I just saw the video on Facebook. Great work!
     
    porkshop likes this.
  29. dirt car
    Joined: Jun 26, 2010
    Posts: 1,612

    dirt car
    Member
    from nebraska

    Defiantly not a task for those faint of heart, I've heated a trashed mid 60's Chevelle upper & lower tank for removal but never the slighted thought of putting one together, well done!
     
    porkshop likes this.
  30. 05snopro440
    Joined: Mar 15, 2011
    Posts: 3,030

    05snopro440
    Member

    Exactly. His videos are a pleasure to watch.
     
    porkshop likes this.

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