m52b20 vs m52b28 head difference

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  • iloveshaorma
    Member
    • Feb 2012
    • 59

    #1

    m52b20 vs m52b28 head difference

    so is the head really different? i am refering to the ports.i know the m52b20 head has smaller valves but what about the ports? i want to put the m52b20 head with the m52b28 valves on a 2.8.
  • Nutzy
    Advanced Member
    • Sep 2011
    • 102

    #2
    Smaller chamber too IIRC.
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