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Flathead clutch.

Discussion in 'The Hokey Ass Message Board' started by tg33chevy, Nov 26, 2007.

  1. tg33chevy
    Joined: Jun 24, 2006
    Posts: 17

    tg33chevy
    Member
    from texas

    Was wondering if someone could give me some information? I am setting up a Flathead with a Chevy trans.(Muncie) am planning on using the Offenhauser adapter, with a Chevy throwout bearing and arm, with a Ford 3- finger pressure plate and Chevy disc. Does this work good or do I need to go to the Chevy pressure plate and re-drill the flywheel? Any help would be appreciated. :confused:
     
  2. Dale Fairfax
    Joined: Jan 10, 2006
    Posts: 2,585

    Dale Fairfax
    Member Emeritus

    The only possible point of incompatibility would be where the throwout bearing meets the clutch fingers. As long as the input shaft length is correct after installing the adapter and the spline matches the disc, the pressure plate doesn't know the difference. Check to make sure you have good contact between the bearing and thefingers and that the bearing isn't too thick (or thin) to provide adequate travel.




    quote=tg33chevy;2387014]Was wondering if someone could give me some information? I am setting up a Flathead with a Chevy trans.(Muncie) am planning on using the Offenhauser adapter, with a Chevy throwout bearing and arm, with a Ford 3- finger pressure plate and Chevy disc. Does this work good or do I need to go to the Chevy pressure plate and re-drill the flywheel? Any help would be appreciated. :confused:[/quote]
     
  3. krylon32
    Joined: Jan 29, 2006
    Posts: 10,455

    krylon32
    ALLIANCE MEMBER
    from Nebraska
    1. Central Nebraska H.A.M.B.

    When we do this conversion we use a Ford PU 10 inch Diaphram PP with a pattern that matchs the flathead flywheel. The PP works well with the Chevy throwout brg. The Long 3 finger PP is not compatable with the smaller Chevy brg. See your local clutch place for the correct part.
     
  4. tg33chevy
    Joined: Jun 24, 2006
    Posts: 17

    tg33chevy
    Member
    from texas

    Thanks for the information, I`ll check with the parts store to see whats available.
     
  5. Flat Ernie
    Joined: Jun 5, 2002
    Posts: 8,406

    Flat Ernie
    Tech Editor

    Do you have any more specific application data for this pressure plate other than Ford pickup? Engine, year, etc??
     
  6. tg33chevy
    Joined: Jun 24, 2006
    Posts: 17

    tg33chevy
    Member
    from texas

    I checked with Napa and they have one for a `53 Ford P.U. 239 V-8. It`s 10" diaphram. (Boy my spelling sucks.)
     
  7. 21stud
    Joined: Sep 3, 2006
    Posts: 336

    21stud
    Member
    from California

    You can call Flathead Jacks in CA. I believe he has the adaptors (chevy) , and can answer your questions. I bought a Weber clutch for my father 10 yrs ago( flathead), and I just installed a Weber clutch /aluminun flywheel for a flathead in my coupe. Very satisfied with the parts ,and service.
     
  8. Flat Ernie
    Joined: Jun 5, 2002
    Posts: 8,406

    Flat Ernie
    Tech Editor

    Thanks!
     

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