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why did the nhra ban the bbf from top fuel

Discussion in 'The Hokey Ass Message Board' started by wayne421, Aug 3, 2012.

  1. wayne421
    Joined: Sep 21, 2011
    Posts: 348


    My brother is building a fed dragster we want to use a blown bbf for the power plant.
    We were wondering why they banned the motor from top fuel
  2. iamben
    Joined: Apr 6, 2009
    Posts: 106


    Isnt the bore spacing to big to fit the nhra rules?
  3. seb fontana
    Joined: Sep 1, 2005
    Posts: 6,924

    seb fontana
    from ct

    BBF as in FE or 385 series?
  4. davidwilson
    Joined: Oct 8, 2008
    Posts: 595

    from Tennessee

    dodge bought nhra off

  5. firingorder1
    Joined: Dec 15, 2006
    Posts: 2,147


    Didn't fit the criteria for a spec class that top fuel has become. The NHRA fears innovation and free thinking.
  6. wayne421
    Joined: Sep 21, 2011
    Posts: 348


  7. So it's like Nascar but in a straight line?
  8. Nope!

    No tire iron fights in the pits.
  9. johnneilson
    Joined: Apr 12, 2011
    Posts: 1,295


    These guys use old torque wrenches.......
  10. I didn't think roundy-round guys knew what those were. :D
  11. wayne421
    Joined: Sep 21, 2011
    Posts: 348


  12. Who says they were banned,
    and not just out run by the Hemis ?
  13. That's what I was thinking from the start of this thread.

    It can't be for cubes. You've got 426 MoPar, 427 Chevy, 428 later Pontiac, 429 Ford and 454 Chevy not to mention any I may have missed.

    Even today's rules cap at 500.
  14. wayne421
    Joined: Sep 21, 2011
    Posts: 348


    I've red about it twice the say no 385 series in vintage top fuel we have a set of john kasse boss nine hemi heads that we wanna run somthing like Connie kaletta did in the late 60s
  15. ENGINE
    Any internal-combustion, American-made OEM-type engine permitted. Maximum
    cubic inches 470; Minimum weight per cubic inch 4.60; maximum bore center spacing
    4.840 inches, must maintain bore centers +/- .015-inch from stock. Blocks and
    cylinder heads must retain all physical characteristics of stock-production
    components. Billet blocks permitted. Any new block design must be submitted to
    NHRA Technical Services Department for acceptance. Machining of billet blocks to
    reduce weight is prohibited. Alloy and billet heads permitted. Accepted billet heads
    and block must remain as manufactured. OEM cylinder-head bolt pattern mandatory
    for all cylinder-head types. Cylinder heads must retain stock OEM-valve angles.

    read another way:
    any engine that fits our spec. the ford was 'ruled out' not 'banned'.

    i believe that this goes back to the VRA days and heritage series had to basically adopt the rules because thats where everyone already was. i've heard the discussion before, but can't remember the details, but typical of big bucks drag racing, the guy with the big bucks make the rules for the organization. not the other way around.
  16. wayne421
    Joined: Sep 21, 2011
    Posts: 348


  17. Is that why the HAMB drags is the only bonafide,affordable- real seat of the pants, down to earth enjoyable drag race event left on the planet?
  18. Cantstop
    Joined: Jul 11, 2005
    Posts: 239


    AWSOME answer. But does a 385 series really belong in a vintage/heritage class, I didnt think they started using them until the early to mid 70s.
  19. I don't agree with a lot of things about today's drag racing, but there is nothing like the experience of watching, hearing and feeling two cars with combined horse power of around 30,000 or more head down the strip!!
  20. Larry T
    Joined: Nov 24, 2004
    Posts: 7,661

    Larry T

    I'm thinking Boss 429 Mustangs came out in 69, but I haven't had coffee yet.
  21. scott 351 wins
    Joined: Dec 22, 2009
    Posts: 434

    scott 351 wins

    I think the O.P. meant ford's 427 cammer engine and it was a hemi.
  22. kracker36
    Joined: Jan 21, 2012
    Posts: 756


    The "FE" family of engines was introduced in 1957.
  23. Larry T
    Joined: Nov 24, 2004
    Posts: 7,661

    Larry T

    The OP is talking 385 series with Kaase Boss heads.
    Last edited: Aug 4, 2012
  24. George
    Joined: Jan 1, 2005
    Posts: 7,404


    Yup! And the regular 429/460 in '68.
  25. Mr48chev
    Joined: Dec 28, 2007
    Posts: 28,832


    I'm seeing that Nascar banned the SOHC from it's racing from the get go but didn't find that the cammer or big blocks were banned from drag racing except for the cammers not being allowed in stock classes.
    Someone put together a pretty good synopsis on the Ford big blocks here.
    As far as for having them in diggers or funny cars the $$$$$ factor may be the biggest thing.
    For the Hamb drags a Cammer would automatically put the car as being built post 1964 as the engine didn't come out until 1964. That would make it not HAMB friendly is that respect.
  26. Kenneth S
    Joined: Dec 15, 2007
    Posts: 1,527

    Kenneth S

    426 Hemi 4.800" bore spacing.
    BB Chevy 4.840" bore spacing.
    BB Ford 4.900" bore spacing.
    FE Ford 4.630" bore spacing.

    The 429 was introduced in 1968.
  27. poprockcrusher
    Joined: May 17, 2009
    Posts: 123


    can't contain an explosion like the hemi can

    my NJ buddies run the last BBC in TA/D century block and billet mkIV heads ..psi blower 60psi ..5.29 @ 250 mph Horner Brothers
  28. sunbeam
    Joined: Oct 22, 2010
    Posts: 5,190


    When NHRA was started there stated porpose was to give guys a place to race to get raceing off the street. I'd say on this point they failed how many street cars are at NHRA meets. It's all about the money.
  29. George
    Joined: Jan 1, 2005
    Posts: 7,404


    The evolution of racing....
  30. Gasser1961
    Joined: Nov 25, 2008
    Posts: 1,104


    NHRA- No Hot Rods Allowed

    It's too bad the NHRA is the only show in town for NTF or TF. If there was another sanctioning body that would embrace diversty in racing that would really help. Money talks as they say.
    tylercrawford likes this.

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