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Zf 8hp70 to sbf

Discussion in 'Off Topic Hot Rods & Customs' started by Toybreaker, May 3, 2025.

  1. Toybreaker
    Joined: Apr 22, 2020
    Posts: 7

    Toybreaker
    Member
    from Maine

    Want to put one of these transmissions behind my 393 sbf
    I am currently stuck. I have the dodge version bellhousing pattern, and the windsor block pattern.
    I need the aod or c4 bell housing hole pattern/location blueprint.
    Lotsa holes transmission side
    Not so many holes block side
     

    Attached Files:

    Ned Ludd likes this.
  2. Blueprint Engines are starting to sell the ZF 8 speed trans to use behind crate motors, not just Mopar. Look into what they are doing, it might already have a solution.
     
    seb fontana likes this.
  3. It looks like some F-150's use the ZF 8 speed transmission(HF45). I'm not sure which Ford engines use the 8 speed.

    Do 150's use the Windsor SBF?
     
    Last edited: May 3, 2025
  4. Toybreaker
    Joined: Apr 22, 2020
    Posts: 7

    Toybreaker
    Member
    from Maine

    No, Blueprint engines does not list any adaptors. The companies that have done the R&D have not bothered with the 8hp70 to old ford engines.

    no ford passenger vehicle has used a pushrod v8 since 2001. The 3.8/4.2 v6 which shares the bell housing pattern stopped in 2004?

    this is a situation where i want to do this myself.
    Maxxecu firmware programming tool is about $600
    And that will make this transmission hold more power than i can make…. Did an MP112 upper intake to mount to a 5.0 ford. Did not solve my split upper manifold issue to be able to run an air to air innercooler. Military deployment to asia, dad died etc life got in the way….
    This will get done, this car is going to be driven to death.


    I did the $200 falcon disc brake conversion on it. When i swap to my alloy wheels i will photograph the finished install and update that thread.
     

    Attached Files:

    pprather likes this.
  5. Moriarity
    Joined: Apr 11, 2001
    Posts: 36,191

    Moriarity
    SUPER MODERATOR
    Staff Member

    moved to the off topic forum
     
  6. Toybreaker
    Joined: Apr 22, 2020
    Posts: 7

    Toybreaker
    Member
    from Maine

    Found the info. Once i get it into Mastercam and develop the geometry/tool paths i will post the screenshot of the finished part.
     
  7. Toybreaker
    Joined: Apr 22, 2020
    Posts: 7

    Toybreaker
    Member
    from Maine

    This is the “rough” 164 tooth version. I will need to make a TC spacer that will not be designed until i get the trans/tc I am using, as well as the fasteners used to hold the plate to the block.
    I still need the bottom of the trans through holes. Again will add those when i have the transmission.
    Thinking i have a good start here.
     

    Attached Files:

    Ned Ludd likes this.
  8. TexasHardcore
    Joined: May 30, 2003
    Posts: 5,560

    TexasHardcore
    Member
    from Austin-ish

    Just curious as to why that choice of transmission?
     
  9. Toybreaker
    Joined: Apr 22, 2020
    Posts: 7

    Toybreaker
    Member
    from Maine

    It is cheap, readily available, holds a ton of power in stock form, modding it for non oem use is “easy”, it only has two sensors (input and output shaft speed), has lots of aftermarket support, also has double overdrive.
     
    TexasHardcore likes this.
  10. Jakob H
    Joined: Feb 21, 2021
    Posts: 6

    Jakob H
    Member

  11. Ned Ludd
    Joined: May 15, 2009
    Posts: 5,453

    Ned Ludd
    Member

    Tangent warning (I did give ample notice): I've just spent a few days reading up on ZF automatics with a (theoretical) view to fully manualizing one, ditching the TCU and rigging analogue switchgear to supply 12V direct to the solenoids. I've had manual epicyclic gearboxes on the brain for a while, even before learning that builders of Riley specials liked to use Wilson preselector gearboxes converted to right-now-selector action. This wouldn't be quite like the electromechanical Cotal setup, though — thank Heavens!

    A torque converter would make all the difference: good to see high-performance converters exist for these. But because a lot of the finesse in the shift quality is ordinarily determined by the TCU, this would have a circle-track-style ball-valve "clutch" as a "finesse pedal" — a term I've used before — also useful for deft downshifts.

    But I got stuck on the ergonomics. If you stop thinking of the thing as an automatic a ratchet shifter might work. It would really only control a rotary switch, and the manual valve in parallel. Only, you might want to skip gears and, thinking about it, there are really only two situations, i.e. 1. coming to a stop after cruising in a higher gear and 2. hooking 2nd for a tight corner. A way to do that is a shifter pattern like a T on its side: upshifts back (that feels more intuitive to me than the other way around), downshifts forwards, and sideways away from your body straight to 2nd, whereafter once forwards takes you to 1st. I was thinking some kind of helical ramp/dog clutch arrangement ...

    Still not sold on having any electrics in the gearbox at all. Apologies for the infodump. As you were: carry on ...
     
  12. Toybreaker
    Joined: Apr 22, 2020
    Posts: 7

    Toybreaker
    Member
    from Maine

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