M54b30 head rebuild

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  • Tyler325i
    Member
    • Jul 2011
    • 64
    #1

    M54b30 head rebuild

    I just picked up a m54b30 from a shop that came out of a 2001 330ci and It needs a new head, the head is 15 thousands out but all the guts are good and dandy. Im looking for a bare head and was wondering if anyone knew where I could get one for a relatively decent price?
    Stroked out and poked out

    Tags: None
    • hoveringuy
      R3VLimited
      • Dec 2005
      • 2675
      #2
      Lemme guess... the engine overheated? Have you pulled any of the bearing caps off the cams to look at the journals?

        Comment

        • Tyler325i
          Member
          • Jul 2011
          • 64
          #3
          yea my buddy at the machine shop checked it all out and did some measuring and everything and all the internals are ok and nothing inside is wrong just the head is warped, and yes it overheated because the guy never checked his coolant, he went on the freeway and yea.....
          Stroked out and poked out

            Comment

            • hoveringuy
              R3VLimited
              • Dec 2005
              • 2675
              #4
              It can be heat-straightened. Check with Heads Up! in Auburn. Runs around $500 and that includes new valve guides.

              I would still pull some bearing caps to see if the journals are scored.

              You're also going to need to Timesert the block. That's mandatory.

                Comment

                • RobertK
                  Kicked cancer's ASS.
                  • Jun 2005
                  • 5864
                  #5
                  I have a nice clean freshly refurbed cylinder head (NOT overheated) pulled from 2003 530i for sale.

                  Came from an engine that sucked in a DISA valve and put a hole straight through piston #2. Originally had 2 small dings on cylinder 2 that were smoothed out by the machine shop. I actually have it listed on eBay with a bunch of pictures.

                  Cleaned, checked, decked and with new valve seals by a local trusted machine shop.

                  PM me if you'r interested. Asking $350 for it.

                  EDIT: Here is a link to my thread on e46fanatics.com: http://forum.e46fanatics.com/showthread.php?t=907651
                  Last edited by RobertK; 03-29-2012, 02:36 PM.

                    Comment

                    • Tyler325i
                      Member
                      • Jul 2011
                      • 64
                      #6
                      What's timeserting the block?
                      Stroked out and poked out

                        Comment

                        • RobertK
                          Kicked cancer's ASS.
                          • Jun 2005
                          • 5864
                          #7
                          Originally posted by Tyler325i
                          What's timeserting the block?
                          Its a conical thread replacement system. You will have to drill out your existing head bolt threads and replace with the Timeserts. There is a kit specifically for aluminum BMW blocks you can buy off Amazon.

                          You will need to install them in the block because once you overheat a M54 the head bolt threads will strip when you go to install the cylinder head.

                            Comment

                            • Tyler325i
                              Member
                              • Jul 2011
                              • 64
                              #8
                              Ohhh alright cool thanks for the heads up! That would make sense
                              Stroked out and poked out

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