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Projects hemi water crossovers- whatcha got because this sucks.

Discussion in 'The Hokey Ass Message Board' started by 31Vicky with a hemi, Dec 22, 2016.

  1. So if you have one of these supercharged water crossovers , please consider renting it for short time for measuring Purposes. Thanks
    55willys likes this.
  2. D2Denny
    Joined: Jan 17, 2012
    Posts: 76


    Hand fabricated on a Red Ram 241. 1 1/4" steel tubing and a Chrysler thermostat housing outlet turned upside down

    Attached Files:

    brigrat likes this.
  3. 55willys
    Joined: Dec 7, 2012
    Posts: 1,711


    Well I am going to fix the problem by casting new blower style crossover like the PAW unit. Having one to measure would be nice but I think I can get it. Going to make an couple test unit's in welded steel first for testing.
    Just Gary likes this.
  4. Brand Apart
    Joined: Jan 22, 2011
    Posts: 810

    Brand Apart
    from Roswell GA

    We are watching, ya never know you might be able to sell a bunch of them. I'm currently planning on using the hot heads AN set up but changing the fittings and hose to all black, to eliminate the late modeL bling.
    But I'm not married to it.
  5. TomWar
    Joined: Jun 11, 2006
    Posts: 727


    Image012.jpg This is a crossover I made from 1" X 2" rectangular tubing.. Image012.jpg
  6. gatz
    Joined: Jun 2, 2011
    Posts: 1,843


    May have posted this a few years ago, but this is what I made for the 331 I'm using in the '40 Chrysler in avatar.
    As I went with the short BB Chevy water pump ( for ease of replacement if necessary) and HH adapters, the stock water pump with the integral cross0ver was no longer needed.
    And, I wanted to make sure to retain the bypass feature.
    The short elbows are kinda expensive, but worked well.

    331 xover trial mnt_1.JPG

    When I get all the accessories mounted, any excess parts of the flanges will be removed. 331 xover_1.JPG

    331 xover_2.jpg
  7. lucky13
    Joined: Feb 7, 2003
    Posts: 121


    That looks pretty good, just wont work with a blower.
    INVISIBLEKID and Hnstray like this.
  8. Is modifying the stock crossover an option?
    Or I guess welding/ brazing cast iron isn't practical?

    FWIW, I cut the alternator mount off my stocker, then ground it smooth. Looks stockish but just a little nicer.
    20170522_181923-1.jpg 20170523_182407-1.jpg
    INVISIBLEKID and Hnstray like this.
  9. 55willys
    Joined: Dec 7, 2012
    Posts: 1,711


    Going through a bunch of stuff and found my jig plate with an unfinished crossover only it in welded steel. I should finish up this project and see about casting some.
  10. 55
    I got this far on a borrowed part.
    IMG_1234.JPG IMG_1235.JPG IMG_1236.JPG
    Hnstray, Pist-n-Broke and Just Gary like this.
  11. Brand Apart
    Joined: Jan 22, 2011
    Posts: 810

    Brand Apart
    from Roswell GA

    Been waiting on seeing what came about with the one 31Vicky made. My son just got excepted to college for mechanical engineering for fall 2019, they have some amazing labs for the students to use and only pay for materials so maybe next year and in future I will be able to post similar home designed solutions to HAMB vehicle parts problems.
    Just Gary likes this.
  12. sunbeam
    Joined: Oct 22, 2010
    Posts: 6,228


    Hombre likes this.
  13. 4tford
    Joined: Aug 27, 2005
    Posts: 1,824


  14. leadfoot1000
    Joined: Nov 4, 2005
    Posts: 43


    Just Gary likes this.
  15. Nick Arias 3rd
    Joined: Aug 22, 2012
    Posts: 22

    Nick Arias 3rd
    from Aromas, CA

    Alright group, this might be what you're looking for. Our Hemi water crossover casting is designed for 331, 354 and Hot Heads cylinder heads on a 392 block. Stock-appearing and lightweight, our part# WM3501-1 uses a Chevy/GM thermostat and housing, and has a threaded boss for temp probe/burp fitting. Price will be in $195-205 range with gaskets. Will be available in 30-45 days. PM me with your requests!

    Attached Files:

  16. gimpyshotrods
    Joined: May 20, 2009
    Posts: 23,401


    Still won't help with a blower.

    We need a replica of the PAW one.
    31Vicky with a hemi likes this.
  18. Agree, This is what's needed for Belt clearance.
  19. Nick has been turning out a lot of cool parts lately, he can probably knock out another one. For us non blower guys this looks like the ticket.
    loudbang likes this.
  20. Never2old
    Joined: Oct 14, 2010
    Posts: 738

    from so cal

    I went ahead and bought the HH assembly. He offers it with black fittings which I love. Really nicely made.

    Sent from my iPhone using H.A.M.B.
  21. Nick Arias 3rd
    Joined: Aug 22, 2012
    Posts: 22

    Nick Arias 3rd
    from Aromas, CA

    Thanks for the props and comments. Yes, mine's not designed for blower pop-offs as it was created for Tom Curnow's recreation of Chrisman's injected Hemi T-Bird. Hopefully my ACE part can compliment your unblown Hemis.

    Sent from my SM-G965U using The H.A.M.B. mobile app
  22. Blower or no blower the PAW will work nice
    gimpyshotrods and loudbang like this.
  23. This should do it for mine, HotHeads aluminum heads on a 392 block. I will look for it.
    loudbang and Nick Arias 3rd like this.
  24. This is from tartar sandwich’s build thread.
    That style you made is already available but doesn’t work out too well most of the time. 41EE908C-221D-42EA-8788-B6DEFA4D1A3B.jpeg

    Seems like you’re much more geared to getting parts made.

    This is what’s needed, and one of these would have made life a little easier for tartar and his dad. PM if you’re interested in working on this
    The original PAW part with a 3D printed copy.
    Last edited: Jul 4, 2019
    Joined: Mar 21, 2014
    Posts: 710

    from okc

    Is it really gonna happen, let us have a moment of silence.....
  26. Brand Apart
    Joined: Jan 22, 2011
    Posts: 810

    Brand Apart
    from Roswell GA

    I'm needing one for a 354 w blower. We are using Arias Pistons though. Very nice looking stuff would love a better t-stat option too.
  27. junkyardgenius
    Joined: Dec 29, 2005
    Posts: 892

    from Kernow

  28. Update-

    First a recap these go back 2 2016 or 2017.
    It wasn’t easy getting to this point.
    6D45F625-BD33-4E3F-BEC1-91718DB75653.jpeg 414DF115-0379-4D50-AEC0-9016B19B3675.jpeg EBA92A69-4423-4BCA-93BE-D9BB3CB18BF3.jpeg

    I’ve talked to at least 2 dozen foundries.
    Three problems were common,
    1. Too complicated and technical
    2. Too expensive with 1-200k set up fees
    3. Too small of runs
    Infinitely frustrating, deflating, discouraging. Just really really hard like running into a wall.

    So I met a guy by chance,
    Casual conversation leads his cousin.
    Met with him, and he’s probably the most talented guy I’ve personally had the pleasure of meeting.

    A week later this is happening
    No stress, no problem, easy.

    First one, out of the sand it’s still hot.
    actually this is #2. The other got cut up for Investigation and testing and measuring wall thickness.


    So it’s happening, they will be available soon.

    Attached Files:

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