S52US cams / M50

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  • alexbaby88
    Wrencher
    • Feb 2005
    • 219

    #1

    S52US cams / M50

    Do S52US cams fit in the M50 engine? I've seen conflicting posts in Bimmerforums.

    Does anyone here know for sure?
  • SchnellerVert
    No R3VLimiter
    • Sep 2005
    • 3948

    #2
    Why not use S50 cams as they are OBD 1 compliant and seem like less of an issue.

    Comment

    • alexbaby88
      Wrencher
      • Feb 2005
      • 219

      #3
      S52 cams seem to come up more often for sale.

      Comment

      • gazellebeigem3
        No R3VLimiter
        • Jun 2005
        • 3712

        #4
        Originally posted by alexbaby88
        S52 cams seem to come up more often for sale.

        Most likely because they were made for more than one year...

        Comment

        • motors4me
          Advanced Member
          • Feb 2005
          • 120

          #5
          I'm running S52 cams in my M50. The thing is, there is a counterweight of sorts cast into the camshaft that hits the HVA carrier. You have to either upgrade to M/S52 HVA's and carriers or go the cheap route like I did and clearance your HVA carrier between each pair of HVA's(with a carbide bit on a die grinder). I took pictures, I'll resize them and add them later if you need to see....

          Comment

          • tonytony
            Knee deep in poopie
            • Jan 2004
            • 3498

            #6
            i would be interested in see these pics, please post. how are the gains, similar to s50 cams?

            Comment

            • motors4me
              Advanced Member
              • Feb 2005
              • 120

              #7
              S52 camshaft intereference with M50 HVA carrier.

              Comment

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