This product is vehicle specific. Click here to select your bike to ensure fitment.

S&S 124" Big Bore Kit For Harley 107" Milwaukee Eight 2017-2019

$1,099.95

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S&S 124" Big Bore Kit For Harley 107" Milwaukee Eight

Upgrade your 107" M8 motor to the largest bore size possible, without required machining of your cases. This is as simple as big power gets, with everything necessary for installation included.

Features:

  • Bolt-on kit, the largest cylinder bore possible for 107" M8 motors without required machining of the crankcases
  • 4.250" bore, 4.375" stroke
  • 11:1 forged pistons with rings, pins and clips
  • All gaskets and hardware required for installation included
  • Wrinkle black finish
  • Made in the USA

This product is vehicle specific. Click here to select your bike to ensure fitment.

Fitment Notes & Exceptions
  • Fits models with 107" Milwaukee Eight motor only

This Product Fits:


Harley Davidson
Electra Glide Ultra Classic FLHTCU/I 2017, 2018, 2019
Electra Glide Ultra Limited FLHTK 2017, 2018, 2019
Electra Glide Ultra Limited Low FLHTKL 2017, 2018, 2019
Road Glide FLTRX 2017, 2018, 2019
Road Glide Special FLTRXS 2017, 2018, 2019
Road Glide Ultra FLTRU 2017, 2018, 2019
Road King FLHR/I 2017, 2018, 2019
Road King Special FLHRXS 2017, 2018, 2019
Softail Breakout FXBR 2018, 2019
Softail Deluxe FLDE 2018, 2019
Softail Fat Bob FXFB 2018, 2019
Softail Fat Boy FLFB 2018, 2019
Softail Heritage Classic FLHC 2018, 2019
Softail Low Rider FXLR 2018, 2019
Softail Slim FLSL 2018, 2019
Softail Sport Glide FLSB 2018, 2019
Softail Street Bob FXBB 2018, 2019
Street Glide FLHX/I 2017, 2018, 2019
Street Glide Special FLHXS 2017, 2018, 2019
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Product Style Item # Manufacturer Product # Availability
Non-Highlighted Fins 1591351 910-0625 Available: Requires 1-3 business days of lead time prior to shipment
Highlighted Fins 1591350 910-0681 In Stock: Ships within 24 hours