Interesting compression ratio and deck height stuff.

Discussion in 'Small Block Tech' started by sean Buick 76, Jan 19, 2020.

  1. sean Buick 76

    sean Buick 76 Buick Nut

    This is an old video but here is a small sample of my collection. Thank goodness my new garage is way bigger.

     
    MrSony and PGSS like this.
  2. PGSS

    PGSS Gold Level Contributor

    So that's just the Show Room:D:D
    More pic's would be nice when you can of the Big Boy garage:)
     
  3. Stevem

    Stevem Well-Known Member

    In getting back to the original topic. Anyway you look at it with 350 cid your going to a total combination of 65 CCs above the piston top to end up with a 12 to 1 comp.
     
  4. sean Buick 76

    sean Buick 76 Buick Nut

    The pole barn, and the new house with 3 car garage, 6 feet width added, 42 foot deep on the 3rd bay with 11.8’ ceiling. Epoxy floor, Hot and cold water, 3 sets of 220V, floor drains, still haven’t setup the 4 post lift, too many other things on the agenda. Built in commercial pressure washer, plasma, mig, tig, and arc welders. And I built a huge barn style shed in the back for extra storage. Just moved in a few months ago so still getting it sorted.
     

    Attached Files:

    Last edited: Feb 4, 2020
    PGSS likes this.
  5. sean Buick 76

    sean Buick 76 Buick Nut

    Yes the heads are highly modified iron versions with 45cc vs the stock 58cc. The chambers are welded up and made into a closed chamber design. 29 thou quench zone. It works out to 12.9:1 compression.

    And yes 60 total volume.
    .
     

    Attached Files:

    Last edited: Feb 4, 2020
  6. Stevem

    Stevem Well-Known Member

    Sounds right for 12.9 to 1!

    So your confident about the Welding work holding up?
     
  7. PGSS

    PGSS Gold Level Contributor

    Sean:):) Just Wow!!
     
  8. sean Buick 76

    sean Buick 76 Buick Nut

    It was done by a professional head shop so yes. When Trick Flow was up and coming they rented a shop from a fellow who was big time into Buick’s. They spent weeks re working the heads, was a $3500 bill! Attached is the cam that was designed for the heads. The largest Buick 350 roller cam in the world.

    They also created a set of Two piece BBB heads that are pretty darn cool. I will try to dig up pics of them.
     

    Attached Files:

    Last edited: Feb 5, 2020
    1972Mach1 likes this.
  9. sean Buick 76

    sean Buick 76 Buick Nut

    These are the BBB heads they made. $10,000 back in 1996, my head porting guy is using these on a Tomahawk.
     

    Attached Files:

    1972Mach1, PGSS and walts72 like this.
  10. PGSS

    PGSS Gold Level Contributor

    It's just a matter of time before someone asks..;)
    Numbers? Anything from flow to HP and TQ? Valve sizes?
    I believe you showed these before but it's been a while right?
     
  11. sean Buick 76

    sean Buick 76 Buick Nut

    Sorry I don’t have any specs or numbers to share but I will ask him. The heads require a custom intake and headers but should be very cool once it’s done.
     
  12. slimfromnz

    slimfromnz Kiwi Abroad

    That cam is way bigger than the one in my 900+hp BBB WOW!!!
     
  13. sean Buick 76

    sean Buick 76 Buick Nut

    Written on the top is 4500-7400 RPM, that’s the rpm range they were planning for. The bottom end is an internal balance forged internal setup so I will spin it up to 7500.
     
    slimfromnz likes this.
  14. Mart

    Mart Gold level member

    That core must have started out with .450 lobe heights. Amazing if you can get it to clear the rods.
     
  15. sean Buick 76

    sean Buick 76 Buick Nut

    Last edited: Feb 5, 2020
  16. Mart

    Mart Gold level member

    Well... they won't perform at all sitting on the shelf.:D
     
  17. sean Buick 76

    sean Buick 76 Buick Nut

    But it’s nice to have options lol!

    look at those lobes! This is the huge roller
     

    Attached Files:

    Last edited: Feb 5, 2020
    MrSony likes this.
  18. sean Buick 76

    sean Buick 76 Buick Nut

    I put the crank back in the engine and getting ready to ship it away for dyno testing. I’m going to use this modified oil pan. Someone welded on a larger bottom section and extended the pickup.
     

    Attached Files:

Share This Page