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Technical SGI block decode help?

Discussion in 'The Hokey Ass Message Board' started by Jim Lato, Nov 14, 2020.

  1. Jim Lato
    Joined: Jun 4, 2017
    Posts: 601

    Jim Lato
    Member

    Would anyone be able to help me decode this engine?

    SGI 5.7
    D148
    Reman# 53324

    14093638
    V0419PJJ

    on the front of the block on the machines surface is
    GJE184015

    I appreciate it, I been having troubles finding info on this guy


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  2. Mr48chev
    Joined: Dec 28, 2007
    Posts: 33,946

    Mr48chev
    ALLIANCE MEMBER

    What the hell is an S G I?
     
    lothiandon1940 and partssaloon like this.
  3. Jim Lato
    Joined: Jun 4, 2017
    Posts: 601

    Jim Lato
    Member

    SGI" was abbreviation for Spheroidal Graphite Iron which is the same as we call Ductile or Nodular iron


    Is what I learned


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  4. doyoulikesleds
    Joined: Jul 12, 2014
    Posts: 306

    doyoulikesleds

    its a 1987 to 1995 tbi engine
     

  5. Jim Lato
    Joined: Jun 4, 2017
    Posts: 601

    Jim Lato
    Member

    Ya I got the basic info on it. I’m trying to narrow it down further


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  6. grumpy65
    Joined: Dec 19, 2017
    Posts: 920

    grumpy65

    Spheroidal graphite cast iron.
    Fancy name for ductile cast iron.

    Edit: Ok...................too slow.
     
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  7. Jim Lato
    Joined: Jun 4, 2017
    Posts: 601

    Jim Lato
    Member

    Another thing didn’t these have larger journals? Or are these a small journal


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  8. squirrel
    Joined: Sep 23, 2004
    Posts: 56,043

    squirrel
    Member

    The letters on the partial VIN are confusing...maybe that G is the number 6? that would make it a Cadillac?
    J is 1988
    E is Linden, NJ, but they were making front wheel drive cars in the late 80s, I think.
     
  9. Jim Lato
    Joined: Jun 4, 2017
    Posts: 601

    Jim Lato
    Member

    Thanks squirrel, I’ll get a mag glass and look a bit closer tomorrow. Sure looks like a G so that would be very odd


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  10. squirrel
    Joined: Sep 23, 2004
    Posts: 56,043

    squirrel
    Member

    also the D 14 8 casting date means the block was cast April 14, 1988, while the 0419 assembly date means it was assembled 5 days later.
     
  11. lippy
    Joined: Sep 27, 2006
    Posts: 6,825

    lippy
    Member
    from Ks

    looks like a traditional number. You old guys should recognize it right away, the GJE is a jet engine, General electric Jet. Manufactured in 1958. Used in gloster meteors. Exported to england during the Korean war.
     
  12. Jim Lato
    Joined: Jun 4, 2017
    Posts: 601

    Jim Lato
    Member

    Now there is a patch of hair missing where I’m scratching my head


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  13. lippy
    Joined: Sep 27, 2006
    Posts: 6,825

    lippy
    Member
    from Ks

  14. seb fontana
    Joined: Sep 1, 2005
    Posts: 8,483

    seb fontana
    Member
    from ct

  15. Mr48chev
    Joined: Dec 28, 2007
    Posts: 33,946

    Mr48chev
    ALLIANCE MEMBER

    Casting number shows up a
    14093638 Small Block V8 1987-1995 350, 2 bolt or 4 bolt, roller or flat tappet cam, 1-piece rear seal
    That from this page https://www.chevyhardcore.com/news/reference-chevy-engine-block-casting-numbers/

    Searching shows that that casting number was machined for roller tappet cams or had less machining and ran a flat tappet cam in trucks.

    V0419PJJ
    =
    V Flint
    04 April
    19 19th day
    PJJ = not in the regular suffix codes, Possibly a truck engine?
     
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  16. Jim Lato
    Joined: Jun 4, 2017
    Posts: 601

    Jim Lato
    Member

    Thank you for you’re help. That’s kind of what I thought when I was looking up PJJ. I’m gonna see if the heads are any good


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  17. Mr48chev
    Joined: Dec 28, 2007
    Posts: 33,946

    Mr48chev
    ALLIANCE MEMBER

    Some sources say it started with 86 and others 87. The cam will probably tell you a lot though.
     
  18. Jim Lato
    Joined: Jun 4, 2017
    Posts: 601

    Jim Lato
    Member

    By the cam? Tell me more


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  19. Mr48chev
    Joined: Dec 28, 2007
    Posts: 33,946

    Mr48chev
    ALLIANCE MEMBER

    From what I am reading Roller = came out of a car flat tappet = came out of a truck. That may not always hold true but might get you closer or send you in the right direction.

    Kind of like the 010 block in that it could come either with 2 bolt or 4 bolt mains depending on what rig it went in at the factory.
    When you check the casting numbers on the heads that might tell you more too.
     
  20. Jim Lato
    Joined: Jun 4, 2017
    Posts: 601

    Jim Lato
    Member

    Ohhhh duh duh duh. Now I remember reading about this. It is a four bolt main one piece rear seal. I will have to read more on it. Someone was telling me to look at the valley pan for tapped something. I can’t remember exactly


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  21. Mr48chev
    Joined: Dec 28, 2007
    Posts: 33,946

    Mr48chev
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  22. squirrel
    Joined: Sep 23, 2004
    Posts: 56,043

    squirrel
    Member

    if you pull the intake, and look at the valley, it will have a "spider" which holds roller lifters in alignment, if it's a roller cam engine. If it's a flat tappet engine, it won't have the spider, and the bolt holes that would hold in the spider might not be tapped.

    you already know it's a 1988 engine, from the casting date code.

    The partial VIN will tell you what it came from, if you can't find the PJJ code in any listing of suffix numbers for 1988 GM vehicles. The lists available on the internet are usually only for one make, and the engine was used in several different makes. If it were from a Chevy, the partial VIN would start with the number 1, but it doesn't, so my guess is you'll probably not find the PJJ code anywhere on the internet.
     
  23. Probably swirl port heads. TBI crap. Not very desirable.
     

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