- Big Bore Kit
- Big-bore bolt-on kit increases 114"/117" with 4-1/2" stroke M-Eight to 128" with no case machining required
- 4-1/4" bore cylinders with 11:1 forged pistons
- Oil Pump/Cam Plate
- S&S oil pump/cam plate with blue anodized finish
- Passage plugs are removable for servicing
- Independent scavenge sections for flywheel cavity and cam chest
- Debris screen in both scavenge pickups
- Magnet in cam chest to help prevent debris from entering the oil pump
- Increased oil flow capacity on both the oil feed and scavenge side
- Adjustable pressure relief valve can be adjusted with the unit installed in the engine
- Pushrods
- Quikee pushrods with chrome pushrod tubes
- Tappets
- S&S premium tappets
- Tappet Cuffs
- S&S hard-anodized, black coated tappet cuffs are billet aluminum construction
- Improve tappet stability in high-lift, high-rpm situations
- Cam
- S&S 550 cams designed for big bore applications
- Valve Springs
- S&S valve springs work with cams up to .605" lift
- High-performance conical single-wire spring design
- All necessary gaskets, bearings and hardware for bolt-on installation is included
- Made in the U.S.A.
| 2022 | Harley-Davidson | Softail Low Rider ST FXLRST | - | - |
| 2022 | Harley-Davidson | Road Glide ST FLTRXST | - | - |
| 2022 | Harley-Davidson | Street Glide ST FLHXST | - | - |
| 2021 | Harley-Davidson | Electra Glide Revival | - | - |
| 2020-2022 | Harley-Davidson | Softail Standard FXST | - | - |
| 2020-2022 | Harley-Davidson | Softail Low Rider S FXLRS | - | - |
| 2019-2022 | Harley-Davidson | Electra Glide Standard EFI FLHTI | - | - |
| 2019-2020 | Harley-Davidson | FXDR 114 | - | - |
| 2018-2022 | Harley-Davidson | Softail Fat Bob 114 FXFBS | - | - |
| 2018-2022 | Harley-Davidson | Softail Street Bob FXBB | - | - |
| 2018-2022 | Harley-Davidson | Softail Heritage Classic 114 FLHCS | - | - |
| 2018-2022 | Harley-Davidson | Softail Fat Boy 114 FLFBS | - | - |
| 2018-2022 | Harley-Davidson | CVO Road Glide Custom FLTRXSE | - | - |
| 2018-2021 | Harley-Davidson | Softail Slim FLSL | - | - |
| 2018-2021 | Harley-Davidson | Softail Heritage Classic FLHC | - | - |
| 2018-2021 | Harley-Davidson | Softail Sport Glide FLSB | - | - |
| 2018-2020 | Harley-Davidson | Softail Breakout 114 FXBRS | - | - |
| 2018-2020 | Harley-Davidson | Softail Deluxe FLDE | - | - |
| 2018-2020 | Harley-Davidson | Softail Low Rider FXLR | - | - |
| 2018-2019 | Harley-Davidson | Softail Breakout FXBR | - | - |
| 2018-2019 | Harley-Davidson | Softail Fat Boy FLFB | - | - |
| 2018-2019 | Harley-Davidson | Softail Fat Bob FXFB | - | - |
| 2017-2022 | Harley-Davidson | Road King Special FLHRXS | - | - |
| 2017-2022 | Harley-Davidson | Street Glide Special FLHXS | - | - |
| 2017-2022 | Harley-Davidson | Road Glide Custom FLTRX | - | - |
| 2017-2022 | Harley-Davidson | Road Glide Special FLTRXS | - | - |
| 2017-2022 | Harley-Davidson | Street Glide EFI FLHX | - | - |
| 2017-2022 | Harley-Davidson | CVO Street Glide FLHXSE | - | - |
| 2017-2022 | Harley-Davidson | Road King EFI FLHR | - | - |
| 2017-2021 | Harley-Davidson | Electra Glide Police FLHTPI | - | - |
| 2017-2019 | Harley-Davidson | Road Glide Ultra FLTRU | - | - |
| 2017-2019 | Harley-Davidson | Electra Glide Ultra Classic EFI FLHTCUI | - | - |
| 2017 | Harley-Davidson | CVO Pro Street Breakout FXSE | - | - |
| 2017 | Harley-Davidson | Softail Slim S FLSS | - | - |
| 2017 | Harley-Davidson | Fat Boy Lo FLSTFB | - | - |
| 2017 | Harley-Davidson | Fat Boy S FLSTFBS | - | - |
| 2017 | Harley-Davidson | Softail Slim FLS | - | - |
| 2017 | Harley-Davidson | Softail Fat Boy EFI FLSTFI | - | - |
| 2017 | Harley-Davidson | Softail Deluxe EFI FLSTNI | - | - |
| 2017 | Harley-Davidson | Softail Heritage Classic EFI FLSTCI | - | - |
| 2017 | Harley-Davidson | Breakout FXSB |
