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LS with JDM P73 pistons

Discussion in 'Engine Building' started by matts91hatchls, Dec 16, 2004.

  1. matts91hatchls

    matts91hatchls Member

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    hey guys im just wondering what compression im running right now with P73s thumbing inside my LS engine..
    stock head

    and what compression would i be running if i swaped for a b16 head
     
  2. pissedoffsol

    pissedoffsol RETIRED

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  3. brian11to1

    brian11to1 Senior Member

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  4. pissedoffsol

    pissedoffsol RETIRED

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    no, thats wrong.

    p30's make it 11:1 and p30's are larger than p73's.

    its high 10s
     
  5. brian11to1

    brian11to1 Senior Member

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    No dude. Go to the calculator and use hte LS head, LS block, 1 layer head gasket and stock LS deck height.
     
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