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question about flathead flywheels

Discussion in 'The Hokey Ass Message Board' started by rlcowboy40, Dec 14, 2007.

  1. rlcowboy40
    Joined: May 10, 2007
    Posts: 31

    from mass.

    can i run a 1946 flathead flywheel on a 1950 flathead block with a castiron adapter and a 1939 tranny thanks
  2. Bruce Lancaster
    Joined: Oct 9, 2001
    Posts: 21,682

    Bruce Lancaster
    Member Emeritus

    Probably not. Ring gear location fore and aft is different between '32-48 and '49-53, and there is a strong possibility of problems with starter en and disen gagement...
    the difference is small, and it is possible it might work, but if you go for it fully check out starter function on a stand before putting it into a car. Screw that, just get the right wheel. They're not rare.
  3. krylon32
    Joined: Jan 29, 2006
    Posts: 7,411

    Alliance Vendor
    from Nebraska

    Listen to the man. Been there-Done that, Not worth the hassle.
  4. the-rodster
    Joined: Jul 2, 2003
    Posts: 6,801



    Check out this thread, I had the same problem.

    I ended up buying a late flywheel (from a hamber) and having it redrilled for a lighter 9 inch clutch. I've put about 10K on this setup, works great.


  5. Bruce Lancaster
    Joined: Oct 9, 2001
    Posts: 21,682

    Bruce Lancaster
    Member Emeritus

    Another prob, likely covered in that thread (had some coffee, fog starting to lift...).
    I think the early wheel is the one with gear forward, and configuration can hit block or oilpump drive cover on late engine...again, possibly solvable, but more trouble than getting right piece...
  6. 36tbird
    Joined: Feb 1, 2005
    Posts: 1,084


    While we're on this topic, is there any big deal to shaving the old flywheels? Is it just a matter of having a lathe big enough to swing it and then use a cutting blade to shave off that bell? Of course, I would get the thing balanced afterwards.

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