- Reduced price
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For Harley-Davidson Milwaukee-Eight FXBR Breakout,FXFB Fat Bob,FXBB Street Bob,FLSB Sport Glide,FLFB Fat Boy,FLHC Heritage Classic,FXLR Low Rider,FLSL Softail Slim.The 114" and 117" engines are uprated to 128".Big Bore kits allow you to get great results with stock cylinder heads.Color/Finish Contrasting slats, Black Granite.
The 114" and 117" engines are uprated to 128".
Color/Finish Contrasting slats, Black Granite.
Big Bore kits allow you to get great results with stock cylinder heads
Easy installation: no drilling or splitting of existing cases, just swap cylinders
Cylinders are made of quality aluminum with cast iron liners
Kits include cylinders, pistons, rings and gaskets (head, base and exhaust)
Made in the U.S.A.
This project requires a trained technician. The person assembling the parts is responsible for checking all tolerances and assembly specifications.
Not recommended for trike models
Displacement 128"
Color/Finish Contrasting slats, Black Granite.
Bore Size 4.250"
Stroke Length 4-1/2"
Compression Ratio 11.0:1
Style Big Bore
* Compatibility:
2020-2024 Harley-Davidson Softail Low Rider S FXLRS Milwaukee-Eight
2022-2024 Harley-Davidson Softail Low Rider ST FXLRST Milwaukee-Eight
2020-2024 Harley-Davidson Softail Standard FXST Milwaukee-Eight
2019-2024 Harley-Davidson FXDR 114 Milwaukee-Eight
2019-2024 Harley-Davidson Softail Deluxe FLDE Milwaukee-Eight
2019-2024 Harley-Davidson Softail Fat Bob 114 FXFBS Milwaukee-Eight
2019-2024 Harley-Davidson Softail Low Rider FXLR Milwaukee-Eight
2019-2024 Harley-Davidson Softail Slim FLSL Milwaukee-Eight
2019-2024 Harley-Davidson Softail Sport Glide FLSB Milwaukee-Eight
2019-2024 Harley-Davidson Softail Street Bob FXBB Milwaukee-Eight
2019-2024 Harley-Davidson Softail Breakout 114 FXBRS Milwaukee-Eight
2019-2024 Harley-Davidson Softail Fat Boy 114 FLFBS Milwaukee-Eight
2019-2024 Harley-Davidson Softail Heritage Classic FLHC Milwaukee-Eight
2019-2024 Harley-Davidson Softail Heritage Classic 114 FLHCS Milwaukee-Eight
2018-2019 Harley-Davidson Softail Breakout FXBR Milwaukee-Eight
2018-2019 Harley-Davidson Softail Fat Bob FXFB Milwaukee-Eight
2018-2019 Harley-Davidson Softail Fat Boy FLFB Milwaukee-Eight
Reference: 10668
Brand: S&S
Reference: 11439
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Brand: S&S
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Brand: S&S
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Brand: S&S
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Brand: S&S
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Brand: S&S
No customer questions for the moment.
For Harley-Davidson Milwaukee-Eight FXBR Breakout,FXFB Fat Bob,FXBB Street Bob,FLSB Sport Glide,FLFB Fat Boy,FLHC Heritage Classic,FXLR Low Rider,FLSL Softail Slim.The 114" and 117" engines are uprated to 128".Big Bore kits allow you to get great results with stock cylinder heads.Color/Finish Contrasting slats, Black Granite.
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