Big car 500HP 455 recipe

Discussion in 'Street/strip 400/430/455' started by black70buick, Jan 5, 2019.

  1. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    X2
     
  2. Jim Weise

    Jim Weise EFI/DIS 482

    Stock Eliminator motor... don't consider that in the equation here, that thing is less "stock" than Larry's motor... I know, I am in the planning stages of a 70 GS D stocker, and trust me, the things required to make the car run under the index competitively, would boggle your mind. So forget about using that motor as any kind of a guideline. NHRA loosened up the inspections here a while back, to the "anything that looks stock and can hold a prescribed volume" is ok for the heads and intake.. Hence you have Jason Line nearly in the 9's with a '70 C stocker.

    What we laid out for you previously still holds, don't get sidetracked by very unique and expensive "stock" motors.

    JW
     
    Smartin likes this.
  3. Stevem

    Stevem Well-Known Member

    Sorry , forgive my fat fingers, I wanted to post 260 to 270 Intake cfm @ 28".
     
  4. Freakazoid

    Freakazoid Gold Level Contributor

    Last edited: Jan 17, 2020
    SpecialWagon65 likes this.
  5. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    The common denominator to 500+ HP combinations is good heads.
     
    Freakazoid likes this.
  6. 87GN_70GS

    87GN_70GS Well-Known Member

    Vortecopro's BBB class racer build details are on the Speedtalk forum
     
  7. black70buick

    black70buick Well-Known Member

    Thanks for the information. The 455 is coming out of the Riv now, there's not doubt there is no other way to resolve the balance/crank issue. Carved up a few roads clicking through gears before the snow hit Monday.
    I found Vortecpro's thread in Speedtalk - thanks Scott. So, I am on to looking at the boost option which Vortecpro stated he had some .030 billet pistons made. Decisions, decisions. hmm.
     
  8. sean Buick 76

    sean Buick 76 Buick Nut

    I would suggest boost for sure! You can run a mild cam and make tons of mid range torque. A properly sized turbo has no downsides or wasted energy spinning belts.
     

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