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3635 West Broad Street
Columbus, Ohio 43228
614-869-3115
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Columbus
My Store
Cycle Gear ColumbusStore Details
Open Today Until 7pm
3635 West Broad Street
Columbus, Ohio 43228
614-869-3115
Over 170 Stores! Change your store.
What’s going on at Cycle Gear
Services
Experienced staff support available on site
Store Events
Meet the local riding community for Bike Nights & more
Shop the Store
Find out what’s in stock and ready to go
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This product is vehicle specific. Click here to select your vehicle to ensure fitment.

S&S Cycle

S&S Cycle 128" Big Bore Kit For Harley 114" / 117" Milwaukee Eight 2017-2026

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S&S Cycle Big Bore Kit for Milwaukee-Eight Overview
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$1,643.95
Fast Lane

Blemished/Refurbished

This item is available as a Blem/Refurb. These are items that cannot be sold as "New" merchandise and are limited to stock on hand. See the product details for a description of the product's condition.

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S&S 128" Big Bore Kit For Harley 114" / 117" Milwaukee Eight

Elevate your M8 engine to its maximum potential with the largest bore size available that doesn't require case machining. Bolster your motor effortlessly with this comprehensive kit, containing all essentials for a straightforward installation.

Features:

  • Bolt-on kit, the largest cylinder bore possible for M8 motors without required machining of the crankcases
  • 4.250" bore, 4.500" stroke
  • 11:1 forged pistons with rings, pins and clips
  • All gaskets and hardware required for installation included
  • Made in the USA
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Please review this product's fitment notes & exceptions prior to purchase: Add to Cart

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

This Product Fits:

Harley Davidson
Electra Glide Ultra Limited CVO/SE FLHTKSE 2017, 2018, 2019, 2020, 2021
Electra Glide Ultra Limited FLHTK 2020, 2021, 2022, 2023, 2024
Road Glide CVO/SE FLTRXSE 2018, 2019, 2020, 2021, 2022
Road Glide Limited CVO FLTRKSE 2022, 2023
Road Glide Limited FLTRK 2020, 2021, 2022, 2023, 2024
Road Glide Special FLTRXS 2019, 2020, 2021, 2022, 2023
Road Glide ST FLTRXST 2022, 2023
Road King Special FLHRXS 2020-2025
Softail Breakout 114 FXBRS 2018, 2019, 2020
Softail Breakout 117 FXBR 2023, 2024, 2025, 2026
Softail Fat Bob 114 FXFBS 2018-2023
Softail Fat Boy 114 FLFBS 2018-2024
Softail Fat Boy FLFB 2025, 2026
Softail FXDR 114 FXDRS 2019, 2020
Softail Heritage Classic 114 FLHCS 2018-2024
Softail Heritage Classic FLHC 2025, 2026
Softail Low Rider S FXLRS 2020-2026
Softail Low Rider ST FXLRST 2022, 2023, 2024, 2025, 2026
Street Glide CVO/SE FLHXSE 2017-2022
Street Glide Special FLHXS 2019, 2020, 2021, 2022, 2023
Street Glide ST FLHXST 2022, 2023
Product Style Item # Store SKU Manufacturer Product # Availability
Product Style Black Granite w/ Highlighted Fins Item # 10555181 Store SKU Manufacturer Product # 910-0733A Availability In Stock: Ships within 24 hours
Product Style Black w/ Highlighted Fins Item # 10555183 Store SKU Manufacturer Product # 910-0684A Availability In Stock: Ships within 24 hours
Product Style Black w/ Non Highlighted Fins Item # 10555182 Store SKU Manufacturer Product # 910-0685A Availability In Stock: Ships within 24 hours
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