M20 Franken-Motor

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  • M5W
    Advanced Member
    • Aug 2009
    • 134

    #1

    M20 Franken-Motor

    Hey guys just wondering about something since I have some parts that still havent sold yet off my 325ic. I am picking up a 86 325es around thanksgiving and since it has a slight oil leak, not enough for the level to drop noticeably between oil changes but enough to put spots on my driveway, so I want to do a headgasket on it and the other assoc. seals. My thing is , can I take the eta intake manifold off and replace it with the "i" intake manifold and swap the "e" cam out and install the "i" cam into the "e" head? I would then run the 325i wiring harnes and components on a 2.7 with a turnermotorsport chip and some ebay headers. Think it would be worthwhile for a reliable daily ? I was thinking about turbo and swapping the "i" head on it but I need something I can just jump in and drive, not tinker with all the time. Was thinking since im gunna be doing the headgasket anyways that it might be worth a look into for a little more pep in the motor. Not looking to something insanely fast but would those mods yield anything at all ? Again the only thing it would be costing me is time, I already have the parts, minus the assoc. seals of course.

  • Rob
    Moderator
    • Oct 2003
    • 8166

    #2
    if you want something just to jump in and drive, why not just put a pan under where you park to catch the oil?
    BEERTECH

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    • phenryiv1
      No R3VLimiter
      • Jul 2009
      • 3246

      #3


      There is a lot in there, but it should get you started.

      Long and short- you can't just throw the "i" cam in there and go, btu it seems like you know that.

      If you were going to go to that trouble, I'd at least swap the head.
      Patrick Henry

      1989 325iC build: http://www.r3vlimited.com/board/showthread.php?t=316880


      Comment

      • M5W
        Advanced Member
        • Aug 2009
        • 134

        #4
        Originally posted by phenryiv1
        http://www.r3vlimited.com/board/show...959#post920959

        There is a lot in there, but it should get you started.

        Long and short- you can't just throw the "i" cam in there and go, btu it seems like you know that.

        If you were going to go to that trouble, I'd at least swap the head.
        Dosent swapping the i head drop the compression alot ? I dont want to do turbo, thats why I was hoping to keep the e head on . Im just trying to work with what I got, more or less making a 327i but without the really low compression.

        Comment

        • Adrian_Visser
          R3VLimited
          • Jun 2006
          • 2823

          #5
          the e and i cams are not interchangeable without machining the head the e cam has four bearing journals the i has six, you will want the i's dual valve springs too...
          Last edited by Adrian_Visser; 10-06-2009, 03:58 PM.

          '89 Alpine S52 with goodies

          Comment

          • Adrian_Visser
            R3VLimited
            • Jun 2006
            • 2823

            #6
            but seriously...

            search!

            all i had to do was type "325es head and cam"

            now read!


            '89 Alpine S52 with goodies

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