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S&S 124" Big Bore Kit For Harley 107" Milwaukee Eight 2017-2020

$989.96
$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
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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 Standard FLHT 2019, 2020
Electra Glide Ultra Classic FLHTCU/I 2017, 2018, 2019
Electra Glide Ultra Limited FLHTK 2017, 2018, 2019, 2020
Electra Glide Ultra Limited Low FLHTKL 2017, 2018, 2019
Road Glide FLTRX 2017, 2018, 2019, 2020
Road Glide Limited FLTRK 2020
Road Glide Special FLTRXS 2017, 2018, 2019, 2020
Road Glide Ultra FLTRU 2017, 2018, 2019
Road King FLHR/I 2017, 2018, 2019, 2020
Road King Special FLHRXS 2017, 2018, 2019, 2020
Softail Breakout FXBR 2018, 2019
Softail Deluxe FLDE 2018, 2019, 2020
Softail Fat Bob FXFB 2018, 2019
Softail Fat Boy FLFB 2018, 2019
Softail Heritage Classic FLHC 2018, 2019, 2020
Softail Low Rider FXLR 2018, 2019, 2020
Softail Slim FLSL 2018, 2019, 2020
Softail Sport Glide FLSB 2018, 2019, 2020
Softail Street Bob FXBB 2018, 2019, 2020
Street Glide FLHX/I 2017, 2018, 2019, 2020
Street Glide Special FLHXS 2017, 2018, 2019, 2020
Product Style Item # Store SKU Manufacturer Product # Availability
Non-Highlighted Fins 1591350 910-0681 In Stock: Ships within 24 hours
Highlighted Fins 1591351 910-0625 In Stock: Ships within 24 hours