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.
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