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  1. #1
    Join Date
    Feb 2008
    Location
    Arizona
    Posts
    648
    What ci could this block be stroked to?? To safely run it with a decend shot of nos with good internals? So, the difference between this block and mine is just iron vs aluminum? I know L33's are H.O engines, but isn't that difference in performance in the heads, pistons and lighter engine?
    Thanks man!!
    06' Silverado RCSB 5.3L 4wd..
    PERFORMANCE: Cam, Springs, Pushrods, P&P heads & 3 angle valve job, Injectors, PS LT's & ORY, Nelson Tune, Catback, CAI, Comp Cam Double Timing Chain, HP Oil Pump, UD Pullies, ARP bolts, Stall, TBS, 4.10's, Iridium NGK's, G-80, 160 t-stat, HD-2 & Vette Servo, 46,000 tranny cooler, 75-125hp shot of funny Gas..
    HID's Hi, Lows & Fogs
    Waiting to be installed: LC-1 WB & Standalone system

  2. #2
    Join Date
    Dec 2008
    Posts
    217
    Quote Originally Posted by White Devil View Post
    What ci could this block be stroked to?? To safely run it with a decend shot of nos with good internals? So, the difference between this block and mine is just iron vs aluminum? I know L33's are H.O engines, but isn't that difference in performance in the heads, pistons and lighter engine?
    Thanks man!!
    if i'm wrong somewhere some one help.....

    the L33 can be bored to a 5.7 i think, (ive read somewhere they got one to 383) but the person doing it was dead on and watched the sleaves.

    they did come with different heads and flat top pistons (witch neither do i have) and it bumped the CR to like 9.9-1 i think.
    06 GMC 5.3..... the little 5.3 that could

    The Black Fleet Car and Truck Club
    my garage and 572 rcsd s-10
    http://www.ls1truck.com/forums/my-ga...tml#post281306

  3. #3
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Aluminum block engines cannot be bored but about .010" oversize.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

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