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Big bore kit

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Old Nov 30, 2016 | 07:10 PM
  #21  
HDSAE60's Avatar
HDSAE60
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From: Broken Bow Oklahoma
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How does the stage IV kit pull it off?
 
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Old Nov 30, 2016 | 10:09 PM
  #22  
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SgtMic
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From: WA State
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The Harley drop in cylinders have a tool steel sleeve which has a thinner spigot to fit into the stock cases.
 
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Old Dec 1, 2016 | 06:09 AM
  #23  
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Originally Posted by HDSAE60
Hey Hillside can the 103 cylinders be cut to 110 without going too thin?
While we were one of the very FIRST shops in the country to start boring the OE cylinder to 3.937" back in 2006, to 98", the 107" in 2007, the answer is no, the super-thin cast iron spigot would not support the thrust load of the piston correctly on it's way around again from BDC.
Scott
 
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