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Technical SBC Double hump heads

Discussion in 'Traditional Hot Rods' started by Ponti461, Jul 7, 2016.

  1. UK Slingshot
    Joined: Feb 6, 2014
    Posts: 164

    UK Slingshot
    Member

    Hi All,

    Not sure if this is the right place on the forum, if not Sorry and please move.

    Can anyone please give me a good close up picture of the "Humps" and measurement.

    Reason of the information is I am wanting to fake my heads to look like Camel heads, not to sell the off as them, just to give the effect for on the Slingshot.

    Cheers
    Andrew
    [​IMG]
     
  2. Merlin
    Joined: Apr 9, 2005
    Posts: 2,546

    Merlin
    Member
    from Inman, SC

    Why? You can probably pick up a set fairly reasonable.
     
    HellsHotRods likes this.
  3. peter schmidt
    Joined: Aug 26, 2007
    Posts: 657

    peter schmidt
    Member
    from maryland

    I can take a pic tonight with a tape measure so you can see the size of the humps and everything. I met a guy that tig welded some aluminum heads up to look like double humps once looked pretty cool.
     
    Ponti461 likes this.
  4. UK Slingshot
    Joined: Feb 6, 2014
    Posts: 164

    UK Slingshot
    Member

    Peter,
    Thanks that will be great. Time to make some Camel heads lol
     

  5. 1946caddy
    Joined: Dec 18, 2013
    Posts: 1,707

    1946caddy
    Member
    from washington

    I guess you could make it out of 10 ga. and epoxy it to the head and paint over it.
     
  6. wheeldog57
    Joined: Dec 6, 2013
    Posts: 1,952

    wheeldog57
    Member

    I saw a set that were bondo'd! They didn't perform as well as real ones though, haha

    Sent from my SM-G900V using H.A.M.B. mobile app
     
  7. Not a great picture. this is on a 63 300hp 327
    [​IMG]
     
  8. image.jpg image.jpg image.jpg Here's my wife's humps on her 67 Camaro 327 202.s hope that helps ya... Btw I win;):D
     
    Tim_with_a_T likes this.
  9. I could trace them onto paper and sent it to ya. Pm me if need be.
     
    Atwater Mike likes this.
  10. slowmotion
    Joined: Nov 21, 2011
    Posts: 3,255

    slowmotion
    Member

    If I were gonna go through the trouble, I'd make 'em TRIPLE hump & let the questions begin!
    You know the ones, factory only cast 6 sets, super duper top secret, experimental and only expedited to chosen drag race & trans-am teams...one set somehow escaped to the public...that's the ones. Yea, that's the ticket....:eek::D:rolleyes:
     
  11. Now your talkin everyone would love one more hump to play with. People would go crazy.
     
    czuch and slowmotion like this.
  12. DDDenny
    Joined: Feb 6, 2015
    Posts: 14,568

    DDDenny
    Member
    from oregon

    Hope this photo makes it across the pond, either my pc or the HAMB has been a bit sketchy this AM.
    Nope, I'll try again later. 20160707_062519.jpg
    Here are the numbers.
    Intake edge to verticle edge of hump=3&3/8"
    Hump width=2&1/8"
    Hump height=1&1/4" (from block deck)
    Space between humps is 9/16"
    Radius of hump=5/16"
    Horizontal casting line between humps=1&1/16" tall from block deck
    PM me for any clarification on numbers.
    Good luck
    Finally worked, here's the photo.
    20160707_062519.jpg


     
  13. iu0DTDE0HT.jpg
    Yeah I know its a vortec but it is a sbc.:)
     
    volvobrynk and slowmotion like this.
  14. slowmotion
    Joined: Nov 21, 2011
    Posts: 3,255

    slowmotion
    Member

  15. UK Slingshot
    Joined: Feb 6, 2014
    Posts: 164

    UK Slingshot
    Member

    Merlin, they are not that cheap or easy to find over here in the UK
     
  16. UK Slingshot
    Joined: Feb 6, 2014
    Posts: 164

    UK Slingshot
    Member

    WOW, thank you very much for that Denny, spot on. Is there anything special on the other ends or are they the same?
     
    paintslinger805 likes this.
  17. gibraltar72
    Joined: Jan 21, 2011
    Posts: 260

    gibraltar72
    Member
    from Osseo Mi.

    This was an extremely untimely post. Wednesday is hump day.
     
    czuch and CornfieldPerformance like this.
  18. Well you win I was fast but you have schooled me with blue prints.:(
     
  19. Merlin
    Joined: Apr 9, 2005
    Posts: 2,546

    Merlin
    Member
    from Inman, SC

    Ah my bad didn't realize you were across the pond.
     
  20. DDDenny
    Joined: Feb 6, 2015
    Posts: 14,568

    DDDenny
    Member
    from oregon

    :cool:
    I was a machinist for thirty years, please don't hold that against me.
    I had to make parts for fabricators, etc on prints worse than that.
    In general, yes, they are the same, but over the years, there were some slight variations, mostly from the casting process. This is a pair of NOS castings dated 1967, I have seen some that even had machine marks cutting through parts of the humps.
     
    Ponti461 likes this.
  21. henryj1951
    Joined: Sep 23, 2012
    Posts: 2,304

    henryj1951
    Member
    from USA

    and so many go to the effort / trouble to REMOVE them...
    so'sss people didn't know what they are...


    :cool:
     
  22. 36DodgeRam
    Joined: Dec 16, 2008
    Posts: 501

    36DodgeRam
    Member

    I just put this set on my '65 Sting Ray. I've seen them for $100 each at the Indy swap meet. 462 Heads.jpeg
     
  23. indyjps
    Joined: Feb 21, 2007
    Posts: 4,072

    indyjps
    Member

    Good idea on a sleeper/race car, fake a set of aftermarket heads to look like double humps.
     
    Ponti461 likes this.
  24. Question, if the total width of the humps is 2 1/8" how can the humps be 5/16 radius (two humps @ 5/16 R =20/16s plus 9/16 = 29/16s right? and 2 1/8 =34/16 for a total of 5/16 difference. I dunno, maybe I'm bad at math. :)
     
  25. 56sedandelivery
    Joined: Nov 21, 2006
    Posts: 6,641

    56sedandelivery
    ALLIANCE MEMBER

    How about using Power Pack heads, and add the Camel Humps to them, keeping the pyramid? "Camel Packs or Power Humps". DZAUTO, over on ChevyTalk.Org, took his Vette Camel Humps, and made them look like Power Packs. Not long ago, I had a set of "single Hump" heads; someone had used 2 barrel, rectangular castings, and added a single hump to the medial end of the rectangle. I could figure out what they were, and the casting numbers did't make any sense with the single hump. Turned out to be BONDO! I gave those heads away; they were actually in good shape. I am Butch/56sedandelivery.
     
  26. Atwater Mike
    Joined: May 31, 2002
    Posts: 10,420

    Atwater Mike
    ALLIANCE MEMBER

    Had one double hump, went to local swap meets, talked to Chevy buds, only pairs for sale. "Why don't you just buy the pair?" I only needed the one. I held out. Finally, I found one.
    Can't blame a guy for tryin' ta get ahead...
     
    Roadster pu 1929 and czuch like this.
  27. flux capacitor
    Joined: Sep 18, 2014
    Posts: 669

    flux capacitor
    Member

    Know a guy who is a master of "fakery". One of the matching number corvette stereotypes. He uses silly putty from toy store to make the impressions, fills them with Jb weld epoxy with Vaseline as a release agent & after dry uses a pneumatic needle scaler used to remove welding slag to give it the desired look. Works amazingly well. He's done it to block casting numbers, date code numbers , even used machinists foil as a number mold using the firing order numbers off intakes, rearrainged to be gm part numbers, his specialty was Winters foundry snowflakes , mists 1403 krylon dull alluminum over the intake manifolds. A particular one he done often was a ground clean of "Holley markings" contender intake & next thing you know it looks like a late 60s early 70s SBC Holley perf intake. Silly putty 101. He's also a guy who once said its ok to advertise a car as numbers matching so long as you don't use the words original engine...... That's just wrong. :eek: Lol ......Flux
     
    Last edited: Jul 7, 2016
    Tim_with_a_T and Atwater Mike like this.
  28. DDDenny
    Joined: Feb 6, 2015
    Posts: 14,568

    DDDenny
    Member
    from oregon

    I knew this would come up the minute I wrote it:mad:
    The radius callout on the hump is accurate, because I used a washer with a 5/8" I.D.(see photo). I had to nearly stand on my head to get the numbers so they may have been rounded up or down. I'm sure for the OP's purposes; they are close enough.
     
  29. Blues4U
    Joined: Oct 1, 2015
    Posts: 5,292

    Blues4U
    Member
    from So Cal

    I'm just surprised at how helpful everyone is. As I read this thread I expected to see the OP being flamed for wanting to fake the humps.
     
  30. DDDenny
    Joined: Feb 6, 2015
    Posts: 14,568

    DDDenny
    Member
    from oregon

    It's still early.
     

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