129" Big-Bore Kit 4.375" Stroke Non-Highlighted Cylinders for 2017-up M8 Models
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129" Big-Bore Kit 4.375" Stroke Non-Highlighted Cylinders for 2017-up M8 Models

Item #: 910-0844
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$1,499.95

The biggest Big Bore possible with a slip in kit! The S&S 4.320" bore cylinder kit takes your 107" M8 to 129" and the 114" to 132".

  • Huge bore increase means huge power increase 
  • Works with stock crankcases (no machine work) 
  • Powder coat finish matches factory finish, 
  • MLS (multi-layered steel) head gaskets 
  • 4.320" Bore 
  • Retains stock engine height 
  • Includes Cubic Inch Cam Cover Badge 
  • Made in USA  

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Disclaimer

NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. Not legal for sale or use on any EPA pollution controlled motor vehicle.