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Columbus
My Store
Cycle Gear ColumbusStore Details
Open Today Until 8pm
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

Customer rating is 3 out of 5 stars. Read 2 Reviews Write a Review
Current price: $1,643.95
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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.

Fitment Notes & Exceptions
  • This product is not legal for street use on an emissions-controlled vehicle. It may be used on dedicated competition or pre-pollution-controlled vehicles only.

    • 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 Only 2 Left: Ships within 24 hours
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