1000 HP NA BBB Ceiling has been Broken Through

Discussion in 'Race 400/430/455' started by GSX455, May 13, 2014.

  1. GSX455

    GSX455 Well-Known Member

    Just came back from the shop were we Dyno'd my Motor build by Best Machine.

    This is a 4.31 Bore 4.3 Stroke Naturally aspirated Big Block Buick

    Motor made 1004 HP with a bad crank main seal. We lost the seal after warm up and vacuum fell from -25, to below -10 due to the leak.

    Would like to Thank John Zerucha for loaning me his headers to make this test run possible.

    I Think with this I will Soon be able to update my Signature Line.
    Last edited: Mar 20, 2017
    Brian Albrecht likes this.
  2. staged2ny

    staged2ny Silver Level contributor

    awesome congrats..:laugh:
  3. 70SherwoodGS

    70SherwoodGS Well-Known Member

    :eek2: Very, very impressive! I would hate to have that pull up next to me at a light. :TU:
  4. Steve Reynolds

    Steve Reynolds SRE Inc

    Very Nice!! Let's see some pics!!
  5. Timonator

    Timonator Silver Level contributor

    Awesome ! Tell us about your build
  6. GSX455

    GSX455 Well-Known Member

  7. GSX455

    GSX455 Well-Known Member

    TA Alum Block
    4.500 Bore
    4.300 Stroke
    TA Stage 2 TE Heads
    2.25 Intake
    1.76 Exh
    Close to 1.00 inch valve lift
    Intake flows over 400 cfm
    Exhaust flows over 285 cfm
    15 to 1 Compression
    Custom Belt drive by Jesel
    Custom Rockers by Jesel
    .938 keyed lifters
    Moldex Billet Crank
    BRE 4500 Carb
    Dailey Dry Sump
    Last edited: May 14, 2014
  8. Staged70Lark

    Staged70Lark Well-Known Member

    Wayne... congrats! I know you have been working on this project for quite some time. I am guessing 1025 HP at 8000 rpms with correct engine vacuum and maybe more with your new set of step headers.

    Whoever is on Facebook please take the time to look at Best Machines page. In specific, the "Buick From Hell" portion. Top notch all the way!!!
  9. gus455

    gus455 Well-Known Member

    Congrats Wayne !
  10. GSX455

    GSX455 Well-Known Member

    Thanks John

    Yes the seal was disappointing but after 16 years of collecting parts ( crank was the first part bought for this build in 98 ) I wanted this thing to show what it had even with the leaking seal.

    Chuck ( Engine Builder ) is estimating the same he thinks at least 20 HP in the vac leak.
  11. TheSilverBuick

    TheSilverBuick In the Middle of No Where

  12. speedtigger

    speedtigger 9 Second Club

    Looks like I lied to my child. There IS such thing as monsters!

    Great job!
  13. BuickGSrules

    BuickGSrules Gold Level Contributor

    Very nice. That will be fun seeing that thing pull off the line :3gears:
  14. slimfromnz

    slimfromnz Kiwi Abroad

    Congrats to you Wayne and your engine team. Very impressive mate!
  15. Steve Schlater

    Steve Schlater Well-Known Member

    1.83 HP/cu.in.......thats stout Wayne !!!! You are going to put that Skinny Kid Chassis to work !!!!

    Congrats !!!
  16. GS Kubisch

    GS Kubisch THE "CUT-UP" BUICK

    That's how it's done!
    I'm very happy for you Wayne.

    Hopefully the next one doesn't take 16 years and we all get used to 4-digit power from these Tomahawks.

    I think there is plenty more there with the proper vacuum.That could even raise your available RPM even more along with the added power.
    Do you know how big the intake port ended up? Both CC and Cross Section?
    How was the exhaust flow with the smaller valve? John Z. and I have talked for a while about not needing such a large exhaust valve on these heads.

    Can't wait to see it hit the track. I don't think an 8.50 cert. is going to be enough.

  17. sriley531

    sriley531 M.M.O.G.

    WOW. That is one BAD piece!! Congrats, that's a dream build for many of us!
  18. Jim Weise

    Jim Weise 1000+HP

    Congrats Wayne.

    What I see in those pics is pretty clear.

    Your level of commitment to this project is what is really so unusual. In a world full of mail order Brand X 1000HP motors, you had the patience, and the ability/will to fund a project that must have seemed like a never ending black hole of money at times. Looks like a good way to spend 30K+. Few are able to do that, and even fewer are willing. But the $$ is not the worst thing.

    The waiting must have been killer. I can imagine the time frames.

    My hat's off to you for seeing it thru! your Patience and funding have been rewarded, and you deserve all the accolades that come your way.

    I look forward to it's performance in your car.

  19. staged70

    staged70 RIP

    Wow Jim, looks like the gauntlet is thrown down!
  20. lostGS

    lostGS Well-Known Member

    bad a$$ looking engine. cannot wait to hear 1/4 mile times


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