320i engine upgrades

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  • Tuki
    Noobie
    • Jan 2008
    • 1
    #1

    320i engine upgrades

    .............
    Last edited by Tuki; 01-15-2008, 09:56 AM.
    Tags: None
    • mark247
      Advanced Member
      • Nov 2007
      • 107
      #2
      m20b25 conversion?

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        • nando
          Moderator
          • Nov 2003
          • 34827
          #3
          other than the head, you can't do much - AFAIK the block is unique and it can't be bored out very far.
          Build thread

          Bimmerlabs

            Comment

            • Borat
              E30 Addict
              • Jan 2005
              • 494
              #4
              Originally posted by nando
              other than the head, you can't do much - AFAIK the block is unique and it can't be bored out very far.
              nope, similar to B25 and B27 blocks but is missing some extra cooling channels.

              best thing to do is 2.5 conversion or get the block from a 525e or 325e and whack your head on.

                Comment

                • digger
                  R3V Elite
                  • Nov 2005
                  • 5928
                  #5
                  alot of the UK guys use the 80mm bored blocks and bore them to accept 84mm pistons from the m20b25 so it can be done
                  89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...

                  new build thread http://www.r3vlimited.com/board/showthread.php?t=317505

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