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Thread: M42 to M50 Swap

  1. #1
    Join Date
    Jun 2006
    Location
    RI
    Posts
    25
    My Cars
    318i

    M42 to M50 Swap

    There are two differnt M50 motor one with Vanos and without it. Would the one without it be an easier swap or would it not matter.
    Besides the motor and wireing harnessand i assum transmission what else would i need?
    Mounts line up the same?
    Stock fuel pump handle the bigger motor?
    How hard is the wireing job?
    Do i need to replace the tranny?

  2. #2
    Join Date
    Mar 2004
    Location
    Napa Valley, CA
    Posts
    3,998
    My Cars
    01 540i/6,02M5,99M3,72E3
    Um I think the rear end in your car is smaller and lighter than the ones in ours so you might want to replace that.

    Tranny not sure on either it might be different but the other 318 guys on here would know better than I would.


    As far as the motor goes though vanos no vanos same amount of work only difference is the comptuer that runs the motor. Just need to make sure you have the right ECU for the right motor and that you get the wiring harness in there for the motor. Otherwise you should be all set.

  3. #3
    Join Date
    Aug 2003
    Location
    New Jersey
    Posts
    4,319
    My Cars
    TSX
    bump, have you gone thru with the swap?

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