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Thread: PRC 220cc 5.3L Stage 2.5 CNC Ported Heads

  1. #11
    Join Date
    Aug 2006
    Location
    Wisconsin
    Posts
    882
    ok, and what gains will i see with the aforementioned mods?
    brad - my fquick..

    curb feelers and fuzzy dice..

  2. #12
    Join Date
    Sep 2007
    Location
    SA, Texas
    Posts
    1,308
    SOLD

    thank you
    brad




    (it was first come first serve basis)
    Last edited by Melissa@NelsonPerformance; 12-21-2007 at 12:59 PM.

    Her name is A Meli-
    "If everything is under control, you are going too slow."- MA

  3. #13
    Join Date
    Aug 2006
    Location
    Wisconsin
    Posts
    882
    Quote Originally Posted by Melissa@NelsonPerformance View Post
    SOLD

    thanks you
    brad




    (it was first come first serve basis)
    thank you melissa!
    brad - my fquick..

    curb feelers and fuzzy dice..

  4. #14
    sprayed99 Guest
    not all the 5.3l are the same. the LM7, L59, LM4 are 9.5 and the L33 is 9.9:1

    the 4.8 is 9.5:1
    the LQ4 is 9.4:1
    the LQ9 is 10:1

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