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Thread: stroke a 4.8

  1. #1

    stroke a 4.8

    just curious can you stroke out a 4.8 to a 408 or do you have 2 start with 6.0

  2. #2
    ff_jeff Guest
    4.8 is maxed out at 383 ci.
    you have to bore it to ls1 piston size (max bore) and use a stroker crank and rods.
    6.0 bored .030 is a 370. get a 4'' crank and you got a 408

  3. #3
    Join Date
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    There is a 4.1 or 4.125'' stroker crank available from Eagle if you want more displacement. GM has a 4.125" crank out now too for the LSX engine to go 4.125 stroke x 4.185 bore. GM now sells a crate LSX 454. GM Performance Parts | LSX Engines
    Last edited by RedHeartbeat; 01-02-2009 at 05:06 PM.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  4. #4
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    corrected dimensions.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  5. #5
    Join Date
    Sep 2008
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    Now a lsx454.. thats just bad**s! I gotta get one.. just have to see if the bank will let me borrow 10k

    Heres is a short block from Texas Speed. http://texas-speed.com/shop/item.asp?itemid=709 Not too bad.

    Price wise stroking the 6.0 to 408, saying you don't have the ability to do it yourself, of course a machine shop to machine the block. How much would it compare to just building up lsx454 short block?
    Last edited by mnc2fan; 01-02-2009 at 11:01 PM.
    - Waiting for an lq9 swap - Super 40 center in dual out - battery swap to spare tire location - exhaust turndown -

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