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  1. #1
    Myself's Avatar
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    WSM Platinum piston specs

    For anybody that has used the WSM pistons with success, how much piston to wall clearance? This is a stock rebuild on a 155hp engine.


  2. #2
    race jase's Avatar
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    I have rebuild many engines with the WSM pistons they work well,i normally set piston to bore at 3.5-4.5 thou.

  3. #3
    Myself's Avatar
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    Got the 010-860-05pk. Called WSM today and tech guy said it's a forged piston and clearance should be .003-.0035. I'm going with .0035

  4. #4
    ou812's Avatar
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    http://www.greenhulk.net/forums/showthread.php?t=221362

    Read up. Some decent info in there.

  5. #5
    Myself's Avatar
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    Yep, read through all that the other night but no real definitive answer on the clearance.

  6. #6
    ou812's Avatar
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    .030 held up so far on a stock 08 RXT

  7. #7
    Myself's Avatar
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    Nice to know. Thanks, I erred on the safe side.

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