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  1. #1
    Paul2005GPR's Avatar
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    Block differences

    What's the difference between a 155 block an an SC block? Can they interchange?


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    Boost addict hotbird's Avatar
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    Quote Originally Posted by Paul2005GPR View Post
    What's the difference between a 155 block an an SC block? Can they interchange?


    The block and crank are the same. Pistons, pto cover, flywheel are differant.

    If using a older block in a newer ski you need to drill a vent hole to make the tops venting work.

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    dsteinmann's Avatar
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    Quote Originally Posted by hotbird View Post
    Quote Originally Posted by Paul2005GPR View Post
    What's the difference between a 155 block an an SC block? Can they interchange?


    The block and crank are the same. Pistons, pto cover, flywheel are differant.

    If using a older block in a newer ski you need to drill a vent hole to make the tops venting work.
    And remove the check valve for the oil to the head if your using a 06+ head with a early block

  4. #4
    Paul2005GPR's Avatar
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    So the bores are the same?

  5. #5
    dsteinmann's Avatar
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    yes I believe their the same on all 4 tecs from 130 to 260

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