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Size bore on ls set up??

Discussion in 'Engine Building' started by shaneb, Jun 24, 2004.

  1. shaneb

    shaneb Member

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    I have a ls bottem end about to be sent to RS machines ....they told me to sleave it to 85 mm bore, Can i go higher than that or is this max. i use the car for everyday driving ,,,,,, Thanx for any info........




    My setup for now....

    A b16 head w/portflow valve train,valve job,
    CnC drag ported
    head milled 20 under
    2 layer head gasket
    skunk2 stage 2 cams
    L Natural cam gears,
    stock gsr header
    Ls bottem end w/p30 pistons,
    Itr manifold,
    In a 91 Hatch dx w/azens tires 15' in
    2 1\2 strait piping all the way back w/ez muffler
    b16 s1 tranny
    vafc controller
     
  2. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    i would go 84 or 84.5 and leave some room to refinish them later incase of fucking the walls up
     
  3. pissedoffsol

    pissedoffsol RETIRED

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    p30 pistons are 81 or 81.5

    not happeneing dude.
     
  4. allbottledup

    allbottledup Senior Member

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    look into that darton MID kit..from what i was reading about it last night it sounds pretty good. www.raceeng.com sells it for 499. Im gonna put it in this winter.
     
  5. shaneb

    shaneb Member

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    the p30's are in the setup i have now...this block is on its way to RS for sleaving....I just wanted to know if i could go 85 + in size.........The price is the same for any size ,,,So can i go bigger ????
     
  6. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    You can go to 86 or even 86.5 if you're adventurous, but I wouldn't boost anything larger than 85 just in case.
     
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