S&S Cycle 129” Big Bore Kits for Harley Davidson 107” M-8 Engines (4.375” STROKE)

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S&S Cycle 129” Big Bore Kits for Harley Davidson 107” M-8 Engines (4.375” STROKE)

S&S Cycle 129” Big Bore Kits for Harley Davidson 107” M-8 Engines (4.375” STROKE)

Original price was: $986.37.Current price is: $788.75.

41 in stock

SKU: 129-M8 Category:

Description

S&S Cycle 129” Big Bore Kits for Harley Davidson 107” M-8 Engines (4.375” STROKE) 

Not compatible with VVT models.

  • Huge bore increase (4.320″) means huge power increase
  • Retains stock engine height
  • Powder coat finish match factory finish, giving the bike a “sleeper” advantage
  • Works with stock crankcases
  • MLS (multi-layered steel) head gaskets
  • Original engine serial numbers are retained
  • Includes Cam Cover Badge
  • Made in USA
  • 910-0843 WRINKLE BLACK / HIGHLIGHTED FINS
  • 910-0844 WRINKLE BLACK

DISCLAIMER: Not legal for sale or use in California on any pollution controlled motor vehicles. 

Fitments

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