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Technical The World's Fastest Flathead

Discussion in 'The Hokey Ass Message Board' started by Speed Gems, Jul 10, 2022.

  1. Speed Gems
    Joined: Jul 17, 2012
    Posts: 6,925

    Speed Gems
    Member

    This isn't that flathead that **** Landy built a few years ago to put into the Flat fire streamliner to set a record, and it's not the blown Cadillac put in that '39 Chevy called Flatcad, this is the one Ron Cooper is putting in a '39 Ford to try and set a record. There's some pretty innovative stuff going on in this build, like the cam bearing used to get the lobe list over .400 :eek: and the welded up combustion chambers, dry sump oiling system, with 3 pickups, :eek: etc. etc. Hopefully I'm not giving away any of Ron's speed secrets since it's only weeks away from Speed week at Bonneville. Flathead guy's Enjoy!
     
  2. 41rodderz
    Joined: Sep 27, 2010
    Posts: 6,540

    41rodderz
    Member
    from Oregon

  3. Hemi Joel
    Joined: May 4, 2007
    Posts: 1,654

    Hemi Joel
    Member
    from Minnesota

    Amazing build. Love the ingenuity!
     
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  4. 41 GMC K-18
    Joined: Jun 27, 2019
    Posts: 5,263

    41 GMC K-18
    ALLIANCE MEMBER

    That really puts a smile on my face, local guys from Washington state going for it, with style and engineering!
     
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  5. tubman
    Joined: May 16, 2007
    Posts: 8,252

    tubman
    ALLIANCE MEMBER

    All of that work and advanced engineering and only 249.5 (honest) horsepower?

    A ,lot of my friends have been lying to me!:D
     
  6. Speed Gems
    Joined: Jul 17, 2012
    Posts: 6,925

    Speed Gems
    Member

    @tubman I don't even want to know how much it cost to go 132.876 M.P.H but it is a record so....
    Hopefully Ron won't be pissed at me for posting all this speed secrets before Speed week in August because I think he's on the H.A.M.B.
     
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  7. Tow Truck Tom
    Joined: Jul 3, 2018
    Posts: 3,460

    Tow Truck Tom
    ALLIANCE MEMBER
    from Clayton DE

    Looks to be several tons of time, thought, and money.
     
  8. hemihotrod66
    Joined: May 5, 2019
    Posts: 968

    hemihotrod66
    Member

    Don Garlits tells a story about seeing a poster in a Chrysler dealers window and it explains why the flathead started to go away...
     
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  9. Bearing Burner
    Joined: Mar 2, 2009
    Posts: 1,208

    Bearing Burner
    Member
    from W. MA

    The record for the fastest flathead is over 302 MPH
     
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  10. Flatheadjohn47
    Joined: Aug 18, 2012
    Posts: 1,407

    Flatheadjohn47
    Member
    from Lewes, DE

    Being a Flathead aficionado for over 60 years, I noticed three differences on building peak power from what I understand to be expected modifications in the flathead world. Not saying they are right or wrong differences,but just different from what I think are accepted practices. However making 250 horses is pretty outstanding for a Flathead so they (the engine builders) obviously know their product well. Observation #1 is unported(making bigger) intake ports.#2 no relief on valve area#3 end exhaust gases enter the header directly across from each other rather than one entrance being higher or lower than the other so the gases would not be directly across from each other. I have fun making good power with my 4 engines I regularly “shuffle” in and out of my early Ford hot rod. Flatheads Forever!! Still picking up outside knowledge at 75 years young! CA33F7BD-52EC-4518-AD09-26D2124C82FF.jpeg D38CDD00-EC7B-4DD3-9210-F15D9CE05655.jpeg 93720866-0C0C-43C7-ADB1-C2B854884862.jpeg 397DFED6-0920-49E2-B608-4F89DDE0F0F5.jpeg F0B9A009-BFE7-4B1F-8423-F2512F607E90.jpeg CA157174-78D3-4D6D-B3F0-FBF2E98C1DE9.jpeg
     
  11. Marty Strode
    Joined: Apr 28, 2011
    Posts: 9,707

    Marty Strode
    Member

    Some great innovation there from the Dorten's, long time NASCAR wizards. I met Keith at the salt in 2016, was introduced by Vic (@krusty40), nice guys, and record setters as well. I often wondered how much power Kenny Kloth was making to run 150 in his stock body 49 Merc. Looking forward to seeing it at Speedweek.
     
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  12. marshall
    Joined: Mar 19, 2001
    Posts: 782

    marshall
    Member
    from tacoma/wa.

    It’s been a eye opening working with Keith on this one
     
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  13. Marty Strode
    Joined: Apr 28, 2011
    Posts: 9,707

    Marty Strode
    Member

    Well, It's just a Northwest Legend, looking over the shoulder of one from the Southeast. My impression of him was a humble genius, nice guy. I do have a question, how fast did Bill Ross run in the car ? I have one of his handouts. Good luck, I should be over the Covid in plenty of time to go, and see you there ! IMG_9536.JPG
     
  14. marshall
    Joined: Mar 19, 2001
    Posts: 782

    marshall
    Member
    from tacoma/wa.

    Bill got the Record Elmo and blew up the motor at Bonneville,
    His car was my old drag car ,I bought it back after he blew it up ,Ron cooper tried to buy it from me but he missed it by a couple of days so I built him the silver car .
    Bill worked very hard to get the Record and a Faulty hose clamp got him .
     

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