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Technical Help identify flathead V8 (no block numbers)

Discussion in 'The Hokey Ass Message Board' started by Inthemitten, Jul 3, 2019.

  1. Inthemitten
    Joined: Jun 13, 2014
    Posts: 35

    Inthemitten
    ALLIANCE MEMBER

    Recently took the flathead out of my '38 Fordor Deluxe to use in a '28 roadster build. Outside of the casting numbers in the heads, I have not been able to find other numbers to tell me about this engine. Heads show 81T which would be a 221 but the T distinguished it as "truck," right?

    A few photos and any help would be appreciated. Water pumps are stuck, but I'm hoping to salvage this. Could be a waste of time too. Open to info!

    IMG_20190702_191527_590.jpeg IMG_20190702_190710.jpeg IMG_20190702_190736.jpeg IMG_20190702_190724.jpeg IMG_20190630_100121.jpeg

    Sent from my Pixel 3 XL using The H.A.M.B. mobile app
     
  2. alchemy
    Joined: Sep 27, 2002
    Posts: 16,736

    alchemy
    ALLIANCE MEMBER

    The heads have a 1938 part number on them. Block is probably a late 38 to 40-ish, but it doesn't have a lower fan mount on the crank so it wasn't used in a Deluxe 39 or a 40.

    See if there is a bulge in the sides of the pan rails for freeze plugs. That would confirm those years.
     
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  3. Inthemitten
    Joined: Jun 13, 2014
    Posts: 35

    Inthemitten
    ALLIANCE MEMBER

    Thanks!
    I can confirm it has the bulges. I read that earlier and had confirmed it last night while trying to see other numbers. So you're stating it's a late 38 - 40 221?
     
  4. alchemy
    Joined: Sep 27, 2002
    Posts: 16,736

    alchemy
    ALLIANCE MEMBER

    Yes. The oil filter is a later add on. The transmission will have serial numbers up top so you can search what the case originally came in, but it may not be the same car.
     

  5. Inthemitten
    Joined: Jun 13, 2014
    Posts: 35

    Inthemitten
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    Thanks, I appreciate the info. Bummed the water pumps are froze (my fault) but might be worth inspecting to see if I can make it run.
     
  6. alchemy
    Joined: Sep 27, 2002
    Posts: 16,736

    alchemy
    ALLIANCE MEMBER

    Give each water pump a short rap right on the nose, it might loosen it. But, if they are old they'll probably still leak. Kits aren't expensive, and are easy to install. Or, the new pumps with the sealed bearings are not expensive either.
     
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  7. Inthemitten
    Joined: Jun 13, 2014
    Posts: 35

    Inthemitten
    ALLIANCE MEMBER

    Good idea. I know she'll roll over so that's at least in my favor. haha. The rest is just details at this point. I'll finish cleaning the years of grime off. She's well preserved I'll say that.
     
  8. BJR
    Joined: Mar 11, 2005
    Posts: 6,851

    BJR
    Member

    Looks like numbers on the flat spot of the bellhousing.
     

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