S&S Cycle 129″ Big Bore Kit 4.375″ Stroke for 107″ M8 Models

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S&S Cycle 129" Big Bore Kit 4.375" Stroke for 107" M8 Models

S&S Cycle 129″ Big Bore Kit 4.375″ Stroke for 107″ M8 Models

Original price was: $861.81.Current price is: $538.94.

21 in stock

SKU: 0931-1079-P Category:

Description

Product Description

The biggest Big Bore slip on kit available, S&S 129″ Big Bore Kit for the 107″ M8 Harley models. Choose between Highlighted and Non-Highlighted cylinders.

Fits: 2017-2022 M-Eight 107″ Harley Models

  • Bolt-on kit, the largest cylinder bore possible without required machining of the crankcases
  • 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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