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Technical Ok, I’ve got a 1937 truck, thinking of swapping in a 1949-53 Flathead?

Discussion in 'The Hokey Ass Message Board' started by Boneyard51, Jan 11, 2020.

  1. Boneyard51
    Joined: Dec 10, 2017
    Posts: 4,019


    Just like the title says, I have a 1937 bone stock Flathead , but it has a crack in the right side cylinder block. I have a several later model engines, with the late model distributor. I w@nt to use one of these motors, mainly because I have them and I want easier ignition system. Am I going to run into any trouble?

  2. Water pumps, fan and distributor stick out farther than the earlier engines which may or may not cause interference. The upper radiator hoses are smaller diameter than the earlier engines as well, I believe. Truck style water pumps will fit the engine mounts in the frame.
    Petejoe likes this.
  3. leon bee
    Joined: Mar 15, 2017
    Posts: 482

    leon bee
    from Arkansas!

    Won't you have to devote some thought to the bellhousing/trans/torquetube setup?
    Hnstray likes this.
  4. Hnstray
    Joined: Aug 23, 2009
    Posts: 11,471

    from Quincy, IL

    Yes, definitely. It requires either a ‘48/‘52 pickup cast iron bell or a ‘49/‘50 (early ‘51 Merc) stamped steel bell housing to mate the later Flathead block to the stock transmission.

    A current thread, titled “Here it goes” , contains some use info for this conversion.

    Petejoe likes this.
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  5. v8flat44
    Joined: Nov 13, 2017
    Posts: 446


    I'm sure someone on The Ford Barn can also add imput. Keep on truck'n.
  6. Petejoe
    Joined: Nov 27, 2002
    Posts: 10,469

    from Zoar, Ohio

    The 8ba oil pan will also interfere with the steering linkages. Using an F1 truck pan will clear this. F1 pumps will also raise the engine to the proper height.
    If you intend to change your 8BA intake to an earlier type, install a PVC system for correct ventilation on it.

    Here’s the link for the thread that Ray posted.
    irishsteve likes this.

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