910-0848A M8 136" big bore cylinder & piston kit. Clear fins
Fits: 17-25 M8 models (excl. 2025 Softail…
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Specifications
- Brand
- S&S
- Part Number
- 910-0848A
- OEM Reference
- —
- Pack Quantity
- Sold as kit
- Category
- Cylinders
- VAT Rate
- 20%
About This Product
For the rider who wants maximum displacement without boring the cases, this S&S 136-inch Big Bore kit is the ultimate M8 upgrade. It bumps your motor up to a massive 2222cc. The kit includes black wrinkle-finished cylinders with clear highlighted fins, forged 4.320-inch pistons, and all necessary gaskets. It fits 2017 to 2025 Milwaukee-Eight models, though it is not for use on 2025 Softails, 2023 to 2025 CVOs, newer 2024 to 2025 Touring models, or Trikes. You will need to pair this with a 4-5/8 inch stroker flywheel assembly to complete the build. When combined with the right cam and heads, this kit is capable of producing serious horsepower and torque for a truly dominant street machine.
Manufacturer part number: 910-0848A.
Fitment
37 models17-25 M8 models (excl. 2025 Softail; 23-25 CVO; 24-25 FLTRX; 24-25 FLHX; 2025 FLHXU; all Trikes)
Police 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2024 | Police Road Glide FLTRXP |
Softail 18 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2018 | Breakout 114 Anniversary FXBRS |
| Harley-Davidson | 2018–2022 | Breakout 114 FXBRS |
| Harley-Davidson | 2023–2024 | Breakout FXBR |
| Harley-Davidson | 2018–2020 | Deluxe FLDE |
| Harley-Davidson | 2018–2024 | Fat Bob 114 FXFBS |
| Harley-Davidson | 2018–2020 | Fat Bob FXFB |
| Harley-Davidson | 2018 | Fat Boy 114 Anniversary FLFBS |
| Harley-Davidson | 2018–2024 | Fat Boy 114 FLFBS |
| Harley-Davidson | 2018–2020 | Fat Boy FLFB |
| Harley-Davidson | 2018 | Heritage Classic 114 Anniversary FLHCS |
| Harley-Davidson | 2018–2024 | Heritage Classic 114 FLHCS |
| Harley-Davidson | 2018–2021 | Heritage Classic FLHC |
| Harley-Davidson | 2020–2022 | Low Rider S FXLRS |
| Harley-Davidson | 2018–2021 | Slim FLSL |
| Harley-Davidson | 2019–2020 | Softail Slim FLSL |
| Harley-Davidson | 2018–2024 | Sport Glide FLSB |
| Harley-Davidson | 2021–2024 | Street Bob 114 FXBBS |
| Harley-Davidson | 2018–2020 | Street Bob FXBB |
Touring 18 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2023 | Electra Glide Highway King FLHFB |
| Harley-Davidson | 2023 | Road Glide Anniversary FLTRXSANV |
| Harley-Davidson | 2017–2023 | Road Glide FLTRX |
| Harley-Davidson | 2021–2024 | Road Glide Limited FLTRK |
| Harley-Davidson | 2017–2023 | Road Glide Special FLTRXS |
| Harley-Davidson | 2022 | Road Glide Special St FLTRXST |
| Harley-Davidson | 2023 | Road Glide St FLTRXST |
| Harley-Davidson | 2017–2024 | Road King Special FLHRXS |
| Harley-Davidson | 2018 | Street Glide Anniversary FLHX |
| Harley-Davidson | 2023 | Street Glide Anniversary FLHXSANV |
| Harley-Davidson | 2017–2024 | Street Glide FLHX |
| Harley-Davidson | 2022 | Street Glide Special ST FLHXST |
| Harley-Davidson | 2023 | Street Glide ST FLHXST |
| Harley-Davidson | 2018 | Ultra Limited Anniversary FLHTK |
| Harley-Davidson | 2023 | Ultra Limited Anniversary FLHTKANV |
| Harley-Davidson | 2017–2024 | Ultra Limited FLHTK |
| Harley-Davidson | 2018–2023 | Ultra Limited Shrine Edition FLHTK |
| Harley-Davidson | 2017 | Ultra Limited Shrine FLHTK |
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