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113" Engine builders

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  #1  
Old 01-31-2011 | 01:43 PM
natural gasser's Avatar
natural gasser
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Default 113" Engine builders

How far can 4.060" cylinders be bored out?
 
  #2  
Old 01-31-2011 | 11:03 PM
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I have done several to .005 and .015.
4.125" no way would not attempt it. The sleeve is too thin to make that safely and still be stable IMHO. At 4.125" all that would be left in the barrel would be .060" wall. I would not trust the stability and I would bet it would distort and seize a piston.
 
  #3  
Old 02-01-2011 | 06:01 AM
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I agree with Dewyes

This what we offer for a 114 inch
Revolution Performance pistons
Big bore kit, 114cid
4.250 x 4.00
But for that little bit of gain of a 114 you should just go for a 117 or 124 inch...If you have a 113 now.
Or Procharge it!!!! My 2 cents....


Originally Posted by natural gasser
How far can 4.060" cylinders be bored out?
 
Attached Thumbnails 113" Engine builders-135kit.jpg  

Last edited by DRAGO'S BIKE WORKS; 02-01-2011 at 06:04 AM.
  #4  
Old 02-01-2011 | 11:06 AM
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Not looking to go 4.125, want to go 4.075"
Thanks
 
  #5  
Old 02-01-2011 | 01:29 PM
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I don't think 4.075" would be a problem. If you can't find any pistons, check with Head Quarters....their pistons are manufactured by CP. They may have 4.075" pistons. I got my 4.065's from them.
 
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