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Your Headquarters For Harley Davidson After-market Parts
Your Headquarters For Harley Davidson After-market Parts

Big Bore Kit S&S 129" M8 Kit Fits Touring 2017 / Later Softail 2018 / L 4.375 Stroke Black 910-0843

by MID-USA
SKU 60393
Original price $1,644.00 - Original price $1,644.00
Original price $1,644.00
$1,833.06
$1,833.06 - $1,833.06
Current price $1,833.06

OEM No:

Weight: 28.00

  • Tha largest Big Bore possible with a slip in kit.
  • This S&S® clylinder and piston kit takes your 107" M8 to 129".
  • Black Cylinders with highlighted fins. 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.
  • 4.375" stroke.
  • Retains stock engine height.
  • Includes Cubic Inch Cam Cover Badge.
  • Made in the USA.

S&S®

Model Fitment

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