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Small Block Engine Casting Numbers

Discussion in 'The Hokey Ass Message Board' started by msuguydon, Jan 27, 2007.

  1. msuguydon
    Joined:
    Oct 5, 2006
    Posts:
    541
    Location:
    Wesley Chapel, FL

    msuguydon Member

    I am trying to confirm a motor, it is a small block Chevy 350, the casting number is 10066086, I cannot find it in any of the books or on-line sites.

    Can anyone give me some help on identifying, year, age of this block?
  2. Tony
    Joined:
    Dec 3, 2002
    Posts:
    6,758
    Location:
    Rochester NY. USA.

    Tony
    ALLIANCE MEMBER

    Is it possible that the 8 is a 3? I ask because if you search Mor tec they have a listing for 10066036.
    This is what it reads.

    10066036...350...........2 or 4...Target Master/Goodwrench crate motor, 2-piece rear
    seal, "Hecho en Mexico"




    Thats coppied right off thier site.

    Tony
  3. msuguydon
    Joined:
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    Location:
    Wesley Chapel, FL

    msuguydon Member

    Could be a 3, hard to read it, and the guy said it was a crate motor, so I guess that all fits into the story
  4. slamdpup
    Joined:
    Apr 27, 2005
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    1,082
    Location:
    Mcdonough,Georgia

    slamdpup Member

    sorry to hijack your post..but is there any other sites other than mortec?...mortec told me my motor was a 1968- 327 small journal...but i kinda need to know what the motor came out of....
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  5. Tony
    Joined:
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    Location:
    Rochester NY. USA.

    Tony
    ALLIANCE MEMBER

    The suffix code on the front passenger pad of the block will tell you that. There should be a sequence of number's and letter stamped there, and the last letters will tell you what the general application was for your motor..
    There could be one letter up to three..

    Check out this site. There is a listing of suffix codes that you *should* be able to run through to get an idea of what your's came from.
    http://www.nastyz28.com/chevy-engine-code-stampings.php#suffix


    Tony
  6. fastmock
    Joined:
    Dec 13, 2007
    Posts:
    3
    Location:
    Louisiana

    fastmock Member

    re: I want one. Aftermarket Marine 504-888-2798 ask for Sean. Got mine yesterday 10066086 Made in Mexico 4 bolt main
  7. fastmock
    Joined:
    Dec 13, 2007
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    3
    Location:
    Louisiana

    fastmock Member

    The eight was a three. 10066036.Sorry. call Sean if you want one
  8. squirrel
    Joined:
    Sep 23, 2004
    Posts:
    25,536
    Location:
    Sierra Vista AZ

    squirrel Member

    here's a tech article on the hamb about that

    http://www.jalopyjournal.com/forum/showthread.php?t=184304
  9. fastmock
    Joined:
    Dec 13, 2007
    Posts:
    3
    Location:
    Louisiana

    fastmock Member

    Have a Mex 350, 1006636, 3 bump heads, unaltered vortec. Found a number on the front of the block above the water inlet on the passenger side and it is stamped like this
    1M0710
    8VP
    What does that number say? Thanks
  10. Schrauberlehrling
    Joined:
    Nov 24, 2007
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    55
    Location:
    South Bavaria, Germany

    Schrauberlehrling Member

  11. automann269
    Joined:
    Feb 4, 2012
    Posts:
    10
    Location:
    australia

    automann269 Member

    Hi Guys,

    Can any one confirm what ive got
    GM 10066036 on the block
    33426651 on the crank
    462624 on the head
    1M0403 7H04 stamped on front of block
    H04 12587265 on a sticker serial number stuck on the sump
    I open the sump and is a 4 bolt all cast pistons had a B stamped on it???
    As i got shafted on ebay saying its was a blown motor complete n new which it is
    I contacted the speed shop that the seller told me it was from and wasnt.
    So just looking at what i got if anyone knows,
    Will build it and put 6-71 blower ontop see if it goes bang.

    Positive comments please
    Cheers
  12. SAM123
    Joined:
    Dec 13, 2011
    Posts:
    2,290
    Location:
    NorCal (transplant from SoCal)

    SAM123 Member

    What do you mean by "positive comments please" ... what have you heard about this place??

    Is there a suffix code on the block deck, right front???
  13. squirrel
    Joined:
    Sep 23, 2004
    Posts:
    25,536
    Location:
    Sierra Vista AZ

    squirrel Member

    hecho en mexico?

    Sounds like a GM crate motor, probably not one of the better ones, sorry
  14. automann269
    Joined:
    Feb 4, 2012
    Posts:
    10
    Location:
    australia

    automann269 Member

    I just wanted to confirm the bum deal i got for the package, and ive got to suck it up
    i will put the motor together and if the bottom end lets go so be it.

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