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Hot Rods question on swapping SBC in 47 Ford coupe

Discussion in 'The Hokey Ass Message Board' started by crider, Apr 13, 2023.

  1. crider
    Joined: Oct 21, 2008
    Posts: 417

    crider
    Member

    I picked up very solid 47 Ford coupe a couple weeks ago. Been sitting inside since 69. The flathead is stuck solid naturally. So I want to do a sbc swap keeping the original trans and rearend. From what I have read so far, I need a pilot bushing spacer, 49-51 mercury pressure plate and the bellhousing adapter. My question is, are all the adapters the same, or do some years of transmissions different? Just don't want to buy the wrong stuff then find out that it won't fit.
     
  2. This may save you some looking, and some $$$ if you have a local clutch rebuilder.: Ft Wayne clutch is expensive and gets $90 core charge.

    Stock Chevy flywheel drilled for Borg and Beck.
    Speedway pilot bushing.
    Borg and Beck #1310 pressure plate.
    Stock Ford clutch disc.
    Early Chevy nose style 3 bolt starter.
    Adapters are the same for SBC/Early Ford.
     
    Last edited: Apr 13, 2023
  3. crider
    Joined: Oct 21, 2008
    Posts: 417

    crider
    Member

    Thanks Hotrod!
     
    Bob Lowry likes this.
  4. Glenn Thoreson
    Joined: Aug 13, 2010
    Posts: 1,017

    Glenn Thoreson
    Member
    from SW Wyoming

    You will also need the proper flywheel for the Chevy engine. I can't remember if it's 153 tooth or 168 tooth. Speedway should have that. Call them and speak to one of their tech people. Ready to use with the pressure plate mentioned. I have one. It's already drilled for the conversion. You also need the front mount adapter. Simple to install with no cutting or welding. I think there are a couple of those listed here in the "Parts for sale" section. This is a pretty easy conversion. The hardest part is the exhaust system. Also, if converting to 12 volts you will need to replace all light bulbs and use a 12 volt coil with ballast resistor. These old Ford gauges work on 12 volts just fine, as is, except the temperature gauge. The easy way around that is to install a universal gauge and sender w/bracket.
     
    crider likes this.
  5. AngleDrive
    Joined: Mar 9, 2006
    Posts: 1,163

    AngleDrive
    ALLIANCE MEMBER
    from Florida

    What year SBC? Starter can bolt to adaptor or block. Also if using Hurst cradle you need the front bolt holes in the block.
     
    jimmy six likes this.
  6. jimmy six
    Joined: Mar 21, 2006
    Posts: 16,670

    jimmy six
    ALLIANCE MEMBER

    And if the right side isn’t offset an electric fuel pump.
     
    deucemac likes this.
  7. AngleDrive
    Joined: Mar 9, 2006
    Posts: 1,163

    AngleDrive
    ALLIANCE MEMBER
    from Florida

  8. HEATHEN
    Joined: Nov 22, 2005
    Posts: 8,977

    HEATHEN
    Member
    from SIDNEY, NY

    All of the SBC to early Ford adapters I've seen required the 168 tooth flywheel, as that was all that existed at the time the adapters were designed.
     
    theHIGHLANDER and lumpy 63 like this.
  9. HEATHEN
    Joined: Nov 22, 2005
    Posts: 8,977

    HEATHEN
    Member
    from SIDNEY, NY

    ...and, for Christ's sake, don't tell aussie57wag what you're doing.
     
  10. theHIGHLANDER
    Joined: Jun 3, 2005
    Posts: 10,602

    theHIGHLANDER
    Member

  11. crider
    Joined: Oct 21, 2008
    Posts: 417

    crider
    Member

    Thanks for the good info Guys. I knew of most of the things needed to get the engine into the car, but was a little fuzzy on what all I need to hook it up to the early trans
     
  12. 283 with an old speed gems adapter.
    There’s usually several in the hamb classified for sale.
    D8CEB475-FAEB-4627-9EEC-C2FF8496A706.jpeg
    it’s crazy how similar the sbc and flatty oil pans were.
    Had steering box issues with the rams horn manifolds so I found some 55/56 Chevy manifolds
    EFDB155B-CD54-4A8B-A9D8-2BB4EA375123.jpeg
    51 merc chassis.
     
    Last edited: Apr 16, 2023
    crider, jimmy six, Tim and 2 others like this.

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