stroker/rod/piston combo

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  • e30rapidic
    R3VLimited
    • Oct 2003
    • 2167

    #1

    stroker/rod/piston combo

    I've decided to build a stroker for my cabrio out of the various parts I have.....eta long block, 2 complete 325i engine's (one is in the car) and an M52 crank.

    Is it okay to use the M52 crank with i rods? ratio would be 1.607. Will be a weekend driver so won't be revving it excessively.

    Pistons - I know i'll need a new set as what I have won't work, so what would you guys recommend? +1 or +2 mm bore? Where to order?

    Head work and 284 or possibly 288 cam will be going in as well.

    Short question. What pistons to use with M52 crank and M20B25 rods....?
    '87 325ic, powered by S50.
  • nando
    Moderator
    • Nov 2003
    • 34827

    #2
    M52 and i rods are both the same length, it already had a 1.6 RR from the factory.
    Build thread

    Bimmerlabs

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    • Mitch M
      E30 Modder
      • Oct 2003
      • 881

      #3
      Originally posted by e30rapidic
      Pistons - I know i'll need a new set as what I have won't work, so what would you guys recommend? +1 or +2 mm bore?
      If you're going to the expense of an overbore, go big. M20 blocks are cheap.

      Comment

      • ///e30freak
        Wrencher
        • Aug 2006
        • 260

        #4
        Originally posted by e30rapidic
        ratio would be 1.607. Will be a weekend driver so won't be revving it excessively.
        I'm building a ~2.8 with the same crank and plan to rev excessively.:drink:

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