Description
S&S Cycle - 310-1224 - 129" Power Package Engine Performance Kit - Gear Drive - Oil Cooled - Highlighted Fins - M8
Features
- Transform 107" oil-cooled M8 into 129" with no case machining required
- Big bore cylinders come with matching cam, cam plate and oil pump
- Independent scavenge sections for flywheel cavity and cam chest
- Magnet in cam chest to help prevent debris from entering oil pump
- Feature high-performance conical single-wire S&S valve springs
- Original engine serial numbers are retained
- Passage plugs are removable for servicing
- Debris screen in both scavenge pickups
- MLS (multi-layered steel) head gaskets
- Performance matched 550 cam
- Works with stock crankcase
- Made in the USA
Specs
| Color/Finish | Black |
| Units | Kit |
| Model | Power Package |
| Riding Style | Street |
| Bore Size Imperial | 4.320'' |
| Cooling System | Oil Cooled |
| Product Name | Performance Kit |
| Color/Finish | Highlighted Fins |
| Stroke Length Imperial | 4.375'' |
| Displacement | 129'' |
| Features | Chrome Pushrod Tubes |
| Type | Engine |
| Cam Drive Type | Gear |
| Style | Big Bore |
Fitment
| 2018-2022 | Harley-Davidson | CVO Road Glide Custom FLTRXSE |
| 2017-2022 | Harley-Davidson | CVO Street Glide FLHXSE |
| 2017-2021 | Harley-Davidson | Electra Glide Police FLHTPI |
| 2021 | Harley-Davidson | Electra Glide Revival |
| 2019-2022 | Harley-Davidson | Electra Glide Standard EFI FLHTI |
| 2017-2019 | Harley-Davidson | Electra Glide Ultra Classic EFI FLHTCUI |
| 2019-2020 | Harley-Davidson | FXDR 114 |
| 2017-2023 | Harley-Davidson | Road Glide Custom FLTRX |
| 2017-2023 | Harley-Davidson | Road Glide Special FLTRXS |
| 2022-2023 | Harley-Davidson | Road Glide ST FLTRXST |
| 2017-2019 | Harley-Davidson | Road Glide Ultra FLTRU |
| 2017-2022 | Harley-Davidson | Road King EFI FLHR |
| 2017-2023 | Harley-Davidson | Road King Special FLHRXS |
| 2018-2020 | Harley-Davidson | Softail Breakout 114 FXBRS |
| 2018-2019, 2023 | Harley-Davidson | Softail Breakout FXBR |
| 2018-2020 | Harley-Davidson | Softail Deluxe FLDE |
| 2018-2023 | Harley-Davidson | Softail Fat Bob 114 FXFBS |
| 2018-2019 | Harley-Davidson | Softail Fat Bob FXFB |
| 2018-2023 | Harley-Davidson | Softail Fat Boy 114 FLFBS |
| 2018-2019 | Harley-Davidson | Softail Fat Boy FLFB |
| 2018-2023 | Harley-Davidson | Softail Heritage Classic 114 FLHCS |
| 2018-2021 | Harley-Davidson | Softail Heritage Classic FLHC |
| 2018-2020 | Harley-Davidson | Softail Low Rider FXLR |
| 2020-2023 | Harley-Davidson | Softail Low Rider S FXLRS |
| 2022-2023 | Harley-Davidson | Softail Low Rider ST FXLRST |
| 2018-2021 | Harley-Davidson | Softail Slim FLSL |
| 2018-2021 | Harley-Davidson | Softail Sport Glide FLSB |
| 2020-2023 | Harley-Davidson | Softail Standard FXST |
| 2018-2023 | Harley-Davidson | Softail Street Bob FXBB |
| 2017-2023 | Harley-Davidson | Street Glide EFI FLHX |
| 2017-2023 | Harley-Davidson | Street Glide Special FLHXS |
| 2022-2023 | Harley-Davidson | Street Glide ST FLHXST |
