Thread: Yb head thickness quick question
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Old Jul 1, 2008 | 09:26 PM
  #6  
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Karl
Norris Motorsport
 
Joined: May 2003
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From: Derbyshire
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The best solution is to machine the pistons with valve cut outs. With this done it is fine to use a YB head down to 138.0mm thickness. (They are 139.0mm new)
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