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SBC Identification

Discussion in 'The Hokey Ass Message Board' started by Jim Lohman, Jan 20, 2011.

  1. Jim Lohman
    Joined: Dec 20, 2008
    Posts: 99

    Jim Lohman
    Member
    from Colorado

    I am trying to narrow down the engine I have to application and HP etc. I have a 1955-1993 casting book but it shows many applications for my block, heads, and crank. Believed to be out of 69 Caprice. Hopefully someone has a better book and can help.

    Block - 3970010
    Heads - 3932441
    Crank - 3932442 2-bolt main
    Intake - 3927184
    S/N - V0707HV

    I have gone to
    http://www.nastyz28.com/gm-chevy-codes/chevy-engine-codes-suffix-6.php

    Says HV is 65 Vette.

    Thanks!
     
    Last edited: Jan 20, 2011
  2. BISHOP
    Joined: Jul 16, 2006
    Posts: 2,570

    BISHOP
    Member

    All small block chevys were corvette engines............:)




    bttt for ya.
     
  3. Retro Jim
    Joined: May 27, 2007
    Posts: 3,853

    Retro Jim
    Member

    Check the heads out and what cam you are running . That's all you really need to know . Unless you want to know if it's a 283 , 327 or 350 . Other than that they are all basically the same engine .
    If it's a 69 with a 2 bbl then probably about 195 to 250 hp when they were NEW .
    That is one of the easiest engine to rebuild to get all the HP your wallet wants .
    If you want to rebuild it and do upgrades that's easy to do and won't cost you a tone of money either .
    Is there a reason you want to know the HP and things like that ?


    Retro Jim
     
  4. Jim Lohman
    Joined: Dec 20, 2008
    Posts: 99

    Jim Lohman
    Member
    from Colorado

    Just nice to know what I am starting with. Determine available compression ratios etc. Thanks for reply.
     
  5. Jim, that 010 block is one of the most common Gen 1 SBC blocks out there, used in literally thousands and thousands of chassis, and applications ranging from delivery vans to Camaros.

    I'm a liitle puzzled by your number for the cylinder heads- it's the same as you have listed for the crank, but besides that, it doesn't sound familiar ("442") as a SBC head number. Is it possible that you meant 3932441? That is a valid head casting...not much in particular to say about it, other than it's not a "big valve" 2.02 head. It was used on a fair amount of baseline 350s and late 327s- certainly a '69 Caprice would be a likely source.

    Remember that suffix codes were reused occasionally. Putting that aside, the 010 block was not cast until late 1968 at the earliest (and used for the next ten years, as least...I don't recall the cutoff date, and it may have been produced until the crank/block redesign), so I don't think the '65 Corvette was in your block's history. :) Is it possible that it's a HY code?
     
  6. Jim Lohman
    Joined: Dec 20, 2008
    Posts: 99

    Jim Lohman
    Member
    from Colorado

    Oops, 2441 is correct, I changed it, thanks.
     
  7. solidaxle
    Joined: Jan 6, 2011
    Posts: 672

    solidaxle
    Member
    from Upstate,NY


    On the pad the V stands for flint ,where it was cast
    07 = month
    07= day assembled
    HV = 1969 passenger car, 350 cin., 255 hp, Turbohdramatic 350

    Note- they did use HV for 65 vette and this is a reuse of that number,like the other post said the cast date ( 010) is too late for a 65
    They used these up to 1975 in every thing ,2 and 4 bolt.

    There's also a date cast on the passanger side of the block above the bell housing.

    I'm an X numbers guy, starting to see the light.
     
  8. Rebel 1
    Joined: Oct 25, 2010
    Posts: 568

    Rebel 1
    Member

    BLOCK

    3970010....302.....69....4...Z-28 Camaro
    3970010....327.....69....2...Trucks and industrial
    3970010....350...69-80...2 or 4

    HEADS
    1969-72 3932441 327,350 1.94 1.5


    Try this site:
    http://www.73-87.com/chevy_ids/sbcid2.htm
     
    Last edited: Jan 21, 2011
  9. Deuces
    Joined: Nov 3, 2009
    Posts: 26,377

    Deuces

    Them are some great blocks!! :)
     
  10. Ghost28
    Joined: Nov 23, 2008
    Posts: 3,195

    Ghost28
    Member

     
  11. coupster
    Joined: May 9, 2006
    Posts: 860

    coupster
    Member
    from Oscoda Mi

    From the manuals I "borrowed" from a stealership I worked at back in the 70's you have a 1969 passenger car 350 with a large journal cast crank, 4bbl. Bulletproof engine I got one in the garage I keep around for a spare.
     
  12. Jim Lohman
    Joined: Dec 20, 2008
    Posts: 99

    Jim Lohman
    Member
    from Colorado

    Thanks for reply. Even though it's 2-bolt main, still bullet proof? Any other indicators that I definitely have large journal crank?
     
  13. All 350s have the large journal diameter...no exceptions. Your 010 block is a large journal block. So far as the block being bulletproof, it depends on what you want to do with it...but a 2-bolt main block will easily hold 600 N/A hp, if you have the tune correct. For 99% of the street cars out there, a 2-bolt block is just fine. :)
     
  14. mgtstumpy
    Joined: Jul 20, 2006
    Posts: 9,248

    mgtstumpy
    Member

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