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  1. #1
    jww's Avatar
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    2003 155 block work for a 2008 255 rebuild

    i have a low hr 2003 155 block. can i use the block only to rebuild my 2008 rxpx 255
    i will be using just the block


  2. #2
    SARTYSRNR's Avatar
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    Yes you can ,remove the oil pressure jet out the block.Piston are different and the flywheel pin on the crank is different.

  3. #3
    jww's Avatar
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    I am using the
    crank
    pistons
    covers
    head
    do I need to drill a vent hole for
    the tops I read that some were ?

  4. #4
    jww's Avatar
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    From my 2008 255

  5. #5
    Quote Originally Posted by jww View Post
    I am using the
    crank
    pistons
    covers
    head
    do I need to drill a vent hole for
    the tops I read that some were ?
    Yes, you need to drill a 1/2" hole just behind the balancer gear. Search the forums for photos of the exact location. If you don't drill this, the block will not vent properly and you will blow the dipstick out while running.

  6. #6
    jww's Avatar
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    Can't find anything can you send my a link
    thanks

  7. #7
    justforfun's Avatar
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    Quote Originally Posted by jww View Post
    Can't find anything can you send my a link
    thanks

    post # 28

    http://www.greenhulk.net/forums/showthread.php?t=95052&page=3

  8. #8
    jww's Avatar
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    Quote Originally Posted by justforfun View Post
    Quote Originally Posted by jww View Post
    Can't find anything can you send my a link
    thanks

    post # 28

    http://www.greenhulk.net/forums/showthread.php?t=95052&page=3
    Thanks great right up

  9. #9
    jww's Avatar
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    Can I use the block and the head from a 2003 155
    to build a 255. I will use the crank pistons
    pto cover
    from my 2008 255
    i blow a big hole it from water intake
    in the motor. Is the cam the same

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