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Technical desoto 291 fit in a 1933 ford without cutting firewall

Discussion in 'The Hokey Ass Message Board' started by rustymetal, Nov 21, 2023.

  1. rustymetal
    Joined: Feb 18, 2003
    Posts: 566

    rustymetal
    Member

    thanks for any help
     

    Attached Files:

  2. So the car is painted before you verified that the engine you want to run will fit without surgery? I'm going with "that is unlikely".
     
  3. rustymetal
    Joined: Feb 18, 2003
    Posts: 566

    rustymetal
    Member

    i have a flathead for it just thinking
     
  4. Bandit Billy
    Joined: Sep 16, 2014
    Posts: 15,329

    Bandit Billy
    ALLIANCE MEMBER

    Well, I have no real clue. But they are not very long. I put a 330 DeSoto in my 41 ford PU, it fit with no firewall or floor surgery, with a stock size radiator and mechanical fan. I did use a short SBC water pump from Hot Heads. I am thinking that my truck had a flathead originally, so maybe they are close to the same length? The right valve cover is exactly a 8mm spark plug wire distance from the firewall. It is basically wall-to-wall engine.
    upload_2023-11-21_17-32-6.png
     
  5. nochop
    Joined: Nov 13, 2005
    Posts: 4,502

    nochop
    Member
    from norcal

  6. Tim
    Joined: Mar 2, 2001
    Posts: 19,652

    Tim
    Member
    from KCMO

    I think it seems feasible if you are putting the motor and steering in together/ with each other. If you have to place the motor based on existing steering or have to run steering to work around the motor your going to come into less options for placement and clearing your stock firewall
     
  7. I really like that the chart posted by @nochop includes the numbers for an Allison. You know; just in case.
     
  8. ERguitar
    Joined: Aug 26, 2018
    Posts: 227

    ERguitar
    Member

    Agreed! I need to stick this on the wall of the shop for bench racing purposes if nothing else. @nochop any comments as to the accuracy of the dimensions on this document?
     
    lostn51 likes this.
  9. alanp561
    Joined: Oct 1, 2017
    Posts: 5,356

    alanp561
    ALLIANCE MEMBER

    For those of us who don't happen to have a 291 DeSoto laying around for reference, maybe you could add your dimensions to the chart? Who knows, there might be one lurking around the corner. ;) BTW, that's a pretty handy chart, @nochop. Thanks.
     
    Budget36 likes this.
  10. lostn51
    Joined: Jan 24, 2008
    Posts: 2,964

    lostn51
    ALLIANCE MEMBER
    from Tennessee

    Yep I screenshot the chart and will be blowing it up so I can have it in the garage,

    Thanks @nochop!!!!!
     
  11. flynbrian48
    Joined: Mar 10, 2008
    Posts: 8,647

    flynbrian48
    Member

    A 276 fit like a glove in my '29, BUT... It's on a '32 frame, so there's a bit more room between the (stock steel) firewall and radiator. The notch in the firewall looks like it was made to snuggle around the distributor. 8DAC7638-6B79-4C13-9765-EA46BD83E044.jpeg 1C9862D9-081B-4982-895C-67FB99EE8213.jpeg CCB1C63A-4C02-4144-A2A8-412597C6994B.jpeg
     
  12. nochop
    Joined: Nov 13, 2005
    Posts: 4,502

    nochop
    Member
    from norcal

    Your welcome. Pm me and I can mail the file
     
  13. nochop
    Joined: Nov 13, 2005
    Posts: 4,502

    nochop
    Member
    from norcal

    No, I don’t even remember where it came from
     
  14. nochop
    Joined: Nov 13, 2005
    Posts: 4,502

    nochop
    Member
    from norcal

    Pm me and I’ll send out the file for the low low price of…..free
     
  15. Tim
    Joined: Mar 2, 2001
    Posts: 19,652

    Tim
    Member
    from KCMO

    That chart is in carnut.com
    Most of the baby hemis are roughly sbc length wise. If I get a minute today I’ll google around and find you a confirmed length
     

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