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School me... How do I ID a Dontov cam

Discussion in 'The Hokey Ass Message Board' started by joemarsicano, Nov 22, 2008.

  1. joemarsicano
    Joined: Jan 21, 2008
    Posts: 188

    joemarsicano
    Member
    from Palmyra PA

    What casting numbers am I looking for on a flat tappet sbc camshaft.

    I want to cross those numbers with the cams I have to see if I do in fact have a factory flat tappet cam.
     
  2. Urinal cake
    Joined: Nov 12, 2008
    Posts: 9

    Urinal cake
    Member
    from Oregon

    Last three numbers will be 097
     
  3. there was another another earlier one that was the 078

    Unclee! (from a remote link)
     
  4. JohnEvans
    Joined: Apr 13, 2008
    Posts: 4,883

    JohnEvans
    Member
    from Phoenix AZ

    097 was the .012-.018 late 283 injection cam IIRC.
     
  5. dbradley
    Joined: Jan 6, 2007
    Posts: 1,036

    dbradley
    Member

    Its been a LOOOOOONG time but I think the part number ends in 097 but the casting number ON THE CAM ends in 098. Like I say its been a lot of years but I seem to remember something like this.....
     
  6. 302GMC
    Joined: Dec 15, 2005
    Posts: 8,478

    302GMC
    Member
    from Idaho

    Rodders also used to call them "pink code", "orange code", etc., referring to a paint smear between two lobes. Pink was the legendary "thirty-thirty".
     
  7. BELLM
    Joined: Nov 16, 2002
    Posts: 2,590

    BELLM
    Member

    The "thirty-thirty" Was the '60s 375hp 327 fuel injection cam. My old feeler gauge has .012, .018 and .030 banged up pretty good!
     
  8. JAWS
    Joined: Jul 22, 2005
    Posts: 1,848

    JAWS
    Member

    Gm had the hot hydraulic cam that was "151" on the last digits. I think it was for the 300 horse 350 and the 325 327. Don't quote me on those cause that's not the DUNTOV cam, not even close.
     
  9. JohnEvans
    Joined: Apr 13, 2008
    Posts: 4,883

    JohnEvans
    Member
    from Phoenix AZ

    The hot hydralic ones was in the 350-327 and 350-350 HP. My fav hyd bump stick , ran it in a lot of engines ,got that profile in my 153 ChevyII banger.
     
  10. 49oldscoupe
    Joined: Jun 3, 2005
    Posts: 546

    49oldscoupe
    Member

    What I have found while doing some research on a NOS GM cam that I had was the solid lifter Duntov cam ends with 097 and the hydraulic Duntov version ends in 098. There will also be a square next to the number if I remember correctly.
     
  11. joemarsicano
    Joined: Jan 21, 2008
    Posts: 188

    joemarsicano
    Member
    from Palmyra PA

    Thanks for the info gang. I will post what I have when I get back over to the shop.
     
  12. bangngears
    Joined: Aug 30, 2007
    Posts: 1,322

    bangngears
    Member
    from ofallon mo

    i think the 097 was a 265 and 098 was 283 both were solid lifter and .012 intake and .018 exhaust were the settings with the engine warm.long time ago but had several.
     
  13. LowKat
    Joined: Nov 29, 2005
    Posts: 10,015

    LowKat
    Member

    solid cams

    3736098 = 57-63 Hi-lift (aka Duntov) PART# 3736097
    3849347 = 64-65 L76 327/365hp & L84 327/375hp(FI) PART# 3849346
    3972178 = 70-71 LT1 350
    3927140 = DZ 302 or (off road)
    3965754 = off road (over the counter service cam)
     

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