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REAL Duntov 30-30 cam specs?

Discussion in 'The Hokey Ass Message Board' started by BOOB, Sep 18, 2009.

  1. M.Edell
    Joined: Jun 5, 2009
    Posts: 4,179

    M.Edell
    Member

    I was thinking of running Comp Cams Solid "Nostalgia Plus"
    Seems like a good grind 247/254 @.050" 504/498 Tight Lash .012/.012
    RPM Range 2300-6900 RPM
     
  2. True; the old 097 grind and the Duntov .030/.030 are different cams. I ran the Duntov in my '57 years ago and the original 283 Power Pack engine loved it.
    I have a new Mellings replacement cam still in the box for the LT-1 350 I'm building to go in the '57 for this incarnation. I'll check the info card over the weekend to see what their specs are.

    But now that I think about it, I may have BOTH versions from Mellings. I think I may have ordered the 097 but changed my mind about putting it in a 350. :confused:
     
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  3. lippy
    Joined: Sep 27, 2006
    Posts: 6,825

    lippy
    Member
    from Ks

    I use to run an Isky Revmaster in my 283's. Oh yeah, don't forget to FACE the tops of the rocker studs flat so the allen setscrew doesn't work loose on your locks.:D I liked the 2nd design Z-28 offroad stick.:)
     
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  4. Shaggy
    Joined: Mar 6, 2003
    Posts: 5,207

    Shaggy
    Member
    from Sultan, WA

    A lot of that has to do with valve Dia. to CU if it has more CU it needs more cam
     
  5. holeshot
    Joined: Sep 18, 2009
    Posts: 1,519

    holeshot
    BANNED
    from Waxahachie

    hey BOOB...i ran a 30-30 cam in 64. c/gas 55 chevy. we had a 456 gear! believe me if U dont have a tall gear. the car will fall on its ass.the duration is around 275. comp. has some realy strong hydrolic cams. for street use. i would strongly advise comp. cams! call me POP...or the old FART!
     
  6. k9racer
    Joined: Jan 20, 2003
    Posts: 3,091

    k9racer
    Member

    we also left the 096 for 55 model year same as later made 097 but had a grove on the journal or race or whatever is the correct name closest to distributor. The cam bearing bearing was not groved in 55.. Lots of guys when installing this cam would cut part of the grill one or 2 small bars out so they could install the cam without removing the grill on a 55.. Plus it let everybody know you had a new cam...
     
    bschwoeble and Deuces like this.
  7. Spec card on the box for my Melling 30/30 cam (their #22410) includes the following info:

    Cam Lift I .323 E .323
    Valve Lift I .485 E .485

    Duration (SAE) I 294 E 294
    Duration (.050) I 254 E 254
     
  8. jpm49c
    Joined: Nov 23, 2006
    Posts: 397

    jpm49c
    Member

    What would you expect you would have to pay for an original Duntov 30-30 cam? John
     
  9. roccodart440
    Joined: Mar 20, 2010
    Posts: 16

    roccodart440
    Member
    from Upstate NY

    [email protected]
    .485 lift
    114LSA

    Made by Howards Cams

    "Rough idle, near duplicate of the famous Duntov 30-30 cam. GM #3849346."

    Upon looking at that cam I don't know why it would be sought after now a days
     
  10. Took these specs from a Super Chevy article that was comparing the Duntov 30/30 (097) to the L-79 hydraulic camshaft.

    .485 lift and 254 duration @ .050. it was not a split pattern cam shaft.

    I don't think that the article gives the lobe separation or the valve event timing but here is a link to the article if you want to search out any more information:

    http://www.superchevy.com/how-to/en...-1003-classic-chevy-small-block-dyno-testing/
     
    1Nimrod likes this.
  11. falcongeorge
    Joined: Aug 26, 2010
    Posts: 18,341

    falcongeorge
    Member
    from BC

    Chevy 30-30 254@050, .485, 112 LSA
    Isky 280HL 224@050, .465, 108 LSA
     
    GlassThamesDoug likes this.
  12. Mr48chev
    Joined: Dec 28, 2007
    Posts: 33,945

    Mr48chev
    ALLIANCE MEMBER

    The factory 30-30 cam sold for 30.00 give or take small change at the Chev garage's parts counter here in town in the mid 60's. They usually had three n the shelf along with 3sets of gunned Corvette valve covers.
     
    loudbang likes this.
  13. bowie
    Joined: Jul 27, 2011
    Posts: 3,103

    bowie
    ALLIANCE MEMBER

    Last edited: Nov 28, 2023
    1Nimrod, Deuces, bschwoeble and 6 others like this.
  14. Gman0046
    Joined: Jul 24, 2005
    Posts: 6,256

    Gman0046
    Member

    MR48Chev is obviously an old timer. I was going to post the best thing about a 30-30 was the $30 price tag at your local Chevy dealer.
     
  15. DDDenny
    Joined: Feb 6, 2015
    Posts: 19,242

    DDDenny
    Member
    from oregon

    Duntov, 327, fueler, 30/30, popups, bored, stroked, stroker, camel humps, fuelie heads, fueler heads, vette, stinger, 3/4 race, full race, ported and polished, ported and relieved, oops that's flathead lingo, cammed up, balanced and blueprinted, built to the hilt. Somebody stop me!
     
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  16. falcongeorge
    Joined: Aug 26, 2010
    Posts: 18,341

    falcongeorge
    Member
    from BC

    Mutha thumpa, Bootlegger, Rattler ect...See, guys will STILL buy junk just cause the name sounds cool, some things never change...:D
     
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  17. seb fontana
    Joined: Sep 1, 2005
    Posts: 8,483

    seb fontana
    Member
    from ct

    STOP..!!!!!!
     
    SuperKONR and Deuces like this.
  18. olscrounger
    Joined: Feb 23, 2008
    Posts: 4,774

    olscrounger
    ALLIANCE MEMBER

    Ran an 097 in my 57 Fuely-stock cam for this application--ran great--set valves at 12 and 18. Same cam used til 63 in Vettes-had one in a 62 340HP vette-a little less radical in a 327 but both ideled at 800-14" vacuum-both ran great.
     
    loudbang likes this.
  19. They actually had them at the local auto parts in the town I went to high school in and they were still in the 30-35 dollar range in the later '60s. Or you could drive the 12 miles to the next town over and buy one from the chevy dealer.

    So while we are specing things out, I have access to an M/T 30/30. Anyone know the specs on that one?
     
    1Nimrod likes this.
  20. I know I paid too much for my 3030, because it cost me 2000 dollars…….but the car came with it. It was, and still is, a 1965 factory injected Corvette coupe. In 1970, I took it to Teter Automotive in Elgin, Illinois, and we were able to pull 345HP at the rear wheels. With a 3:55 rear end and 2.20 1st gear, the car would do 70 in first at 7 grand. It would do 150 in 4th at redline, and did 12.42 at Great Lakes dragway with open headers and street tires. Still have the car.
     
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  21. 2OLD2FAST
    Joined: Feb 3, 2010
    Posts: 5,257

    2OLD2FAST
    Member
    from illinois

    Yeah , we were wearing animal skins & carrying spears , but we did have some radical cams .:rolleyes:
     
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  22. BadgeZ28
    Joined: Oct 28, 2009
    Posts: 1,167

    BadgeZ28
    Member
    from Oregon

    Yeah, I find the specs posted very radical for the time period and applications.
     
    Deuces likes this.
  23. Stan Back
    Joined: Mar 9, 2007
    Posts: 2,202

    Stan Back
    Member
    from California

    In 1961 we built a 283" Chevy-powered Model T gas drag Roadster. My partner worked for an auto parts store and he got an appropriate Harmon & Collins(?) cam for our car. I didn't seem to cut the mustard so we switched to an "097" ($27?) and picked up a half a second.

    Maybe the old flathead cam profile wasn't what we needed.
     
    Last edited: May 26, 2022
    1Nimrod likes this.
  24. 302GMC
    Joined: Dec 15, 2005
    Posts: 7,867

    302GMC
    Member
    from Idaho

    Surprised nobody remembers when guys with the faster Chevs called the factory cams by color code ...
    "Orange code Duntov'', Pink code, etc. Maybe a green one, too.
    Must have happened in other parts of the county besides Idaho.
     
  25. Deuces
    Joined: Nov 3, 2009
    Posts: 23,875

    Deuces

    Pictures or it never happened!...;):)
     
    fauj likes this.
  26. wheeldog57
    Joined: Dec 6, 2013
    Posts: 3,173

    wheeldog57
    Member

    Hmmmmm I thought there was only one 30/30 cam. . . . And it was a solid lifter. Anything else is just a poser.
     
    427 sleeper, egads and Bob Lowry like this.
  27. drtrcrV-8
    Joined: Jan 6, 2013
    Posts: 1,709

    drtrcrV-8
    Member

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