CA Residents Only: 274 cam smoggable?

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  • 88Sedan
    Wrencher
    • Apr 2023
    • 207

    #1

    CA Residents Only: 274 cam smoggable?

    Simple question: Any CA residents successfully pass smog with a 274 camshaft in their m20?

    If yes, tell me every detail of your setup. I will be disassembling my head at some point in the future, and I cannot find any (good) threads pertaining to this subject.

    Only looking to hear from individuals that have actually done it, "shoulds" and "coulds" don't count and I don't want to cheat the smog test.
  • MR 325
    Moderator
    • Oct 2003
    • 37825

    #2
    I know of at least 10 engines running our 274 camshaft that have passed California Smog testing.

    If you have a stock(ish) 2.5L or 2.7L M20 you shouldn't have an issue.
    BimmerHeads
    Classic BMW Specialists
    Santa Clarita, CA

    www.BimmerHeads.com

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    • 88Sedan
      Wrencher
      • Apr 2023
      • 207

      #3
      Awesome, thanks! I'm not sure why I couldn't find any info on this, being its considered a 'mild' cam and I see e30s all over CA.

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