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dating an engine block

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    dating an engine block

    The motor in question was supposed to be out of an 89 vert, engine number is stamped into block just above the oil pan on drivers side of engine. 24726629 I know the first number indicates it is an m20, the next three numbers indicate the engine serial number 472, the first 6 indicates it was built in austria, and that the last three numbers are supposed to indicate the production day 629. However the problem i'm having is that i don't know what the 629 indicates. Is it june 29th, is it the 629th day of engine production. I've got another block that has the last three digits as 029. There is no zero month, so that sort of kills my june 29th theory on the engine i'm asking about. And since this is supposed to be an 89 engine that sort of kills the 629th day of engine production idea, considering the m20 was in production for several years before 1989 and there are 365 days in a year. I've been searching but can't find any concrete info on the last three numbers. Any help would be appreciated, I'm trying to order main bearings for this engine and i know the date break for different bearings occurred in february of 88. I don't want to pay for the wrong ones.
    sigpic

    #2
    The locking notches in the block and bearing caps determine which bearings you need. Early production has a single 2.9mm notch and late production will have one or two 2.0mm notches and can have crescent shaped oil groves in the bearing cap. You can use the late bearings in an early block, but not vice versa.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

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      #3
      Read thread title and got the wrong idea.
      www.cp-e.com

      1989 Zinno 325i m52 turbo coupe
      2015 Ford Fiesta ST, Daily Driver.

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        #4
        Originally posted by mitchlevy7 View Post
        Read thread title and got the wrong idea.
        I'm sad to say the same thing.
        2008 335i - n54b30
        1991 318i - m52b28
        1994 fzj80 - LAND CRUSHER

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          #5
          Originally posted by mitchlevy7 View Post
          Read thread title and got the wrong idea.
          Originally posted by drumad View Post
          I'm sad to say the same thing.
          +1

          My gut said "never"..but I'd date its sister
          Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com

          https://www.r3vlimited.com/board/sho...86#post4944786
          Alice the Time Capsule
          http://www.r3vlimited.com/board/showthread.php?t=360504
          87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220

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            #6
            Thanks, Jlevie. Your info is always helpful and not full of bull.
            sigpic

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              #7
              no, I wouldn't date a bull, either...

              t
              now, sometimes I just mess with people. It's more entertaining that way. george graves

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