2018 - 2023
HARLEY-DAVIDSON SOFTAIL FAT BOY
136" big bore cylinder kit
| S&S CYCLE
Fits to:
HARLEY-DAVIDSON FLFBS 1868 ABS Softail Fat Boy 114 [2018 - 2018]
HARLEY-DAVIDSON FLFBS 1868 ABS Softail Fat Boy Anniversary (ANV) 114 [2018 - 2018]
HARLEY-DAVIDSON FLFB 1750 ABS Softail Fat Boy 107 [2020 - 2020]
HARLEY-DAVIDSON FLFBS 1868 ABS Softail Fat Boy 114 [2022 - 2022]
HARLEY-DAVIDSON FLFB 1750 ABS Softail Fat Boy 107 [2019 - 2019]
HARLEY-DAVIDSON FLFB 1750 ABS Softail Fat Boy 107 [2018 - 2018]
HARLEY-DAVIDSON FLFBS 1868 ABS Softail Fat Boy 114 [2023 - 2023]
HARLEY-DAVIDSON FLFBS 1868 ABS Softail Fat Boy 114 [2021 - 2021]
HARLEY-DAVIDSON FLFBS 1868 ABS Softail Fat Boy 114 [2019 - 2019]
HARLEY-DAVIDSON FLFBS 1868 ABS Softail Fat Boy 114 [2020 - 2020]
HARLEY-DAVIDSON FLFBS 1868 ABS Softail Fat Boy Anniversary (ANX) 114 [2018 - 2018]
Specifications
| Manufacturer | S&S CYCLE |
|---|---|
| Base finish | Powder-Coated |
| Bore size | 4,320" |
| Color/finish | Highlighted Fins, Black Granite |
| Compression ratio | 11,0:1 |
| Compression ratio imperial | 11.0:1 |
| Displacement | 136" |
| Stroke length | 4,625" |
| Type | Big Bore |
| Units | Kit |
| Width | 372.000 |
| Height | 274.000 |
| Length | 482.000 |
Product description
Bolt on kit, the largest cylinder bore possible without requiring machining of crankcases
Includes MLS (multi-layered steel) head gaskets and cam cover badge
S&S stroker 4.625" flywheel required and is sold separately
Takes 107"/114"/117" to 136" displacement
Original engine serial numbers are retained
Retains stock engine height
Made in the USA