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Hemi Design Heads

Discussion in 'Motorcycle Tech Talk' started by Pep Talk, May 31, 2004.

  1. Pep Talk

    Pep Talk New Member

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    Does anyone have any experience with heads for an EVO from a company called Hemi Design? I'm wondering if Branch heads wit JE pistons is the way to go or if these Hemi heads with their pistons are better? Any thoughts?
    Pep Talk, May 31, 2004
    #1
  3. Seahag

    Seahag New Member

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    I read a tech article some time back in American Iron magazine from Donny Peterson where he said Hemi style combustion chambers are inefficient for combustion...to make good compression you need domed pistons and they are no good for flame travel.
    Seahag, Jun 2, 2004
    #2

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