Features
- Big-bore bolt-on kit increases 114"/117" with 4-1/2" stroke M-Eight with no case machining required
- 4-1/4" bore cylinders with 11:1 forged pistons
- 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
- Quickee pushrods with chrome pushrod tubes
- S&S premium tappets
- S&S hard-anodized, black coated tappet cuffs are billet aluminum construction
- Improve tappet stability in high-lift, high-rpm situations
- S&S 550 cams designed for big bore applications
- 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.
Specs
| Product Name | Performance Kit |
| Type | Engine |
| Style | Big Bore |
| Model | Power Package |
| Color/Finish | Black Granite / Highlighted Fins |
| Stroke Length | 4.50" |
| Displacement | 128" |
| Bore Size | 4.250" |
| Compression Ratio | 11.1:1 |
| Cam Drive Type | Gear |
| Cooling System | Water Cooled / Oil Cooled |
| Units | Kit |
| Riding Style | Street |
FITMENTS:
| 2022 | Harley-Davidson | FLHXST Street Glide ST | - | - |
| 2022 | Harley-Davidson | FLTRKSE CVO Road Glide Limited | - | - |
| 2022 | Harley-Davidson | FLTRXST Road Glide ST | - | - |
| 2022 | Harley-Davidson | FXLRS Low Rider S 117 | - | - |
| 2022 | Harley-Davidson | FXLRST Low Rider ST 117 | - | - |
| 2022 | Harley-Davidson | Softail Street Bob FXBB | - | - |
| 2021-2022 | Harley-Davidson | FXBBS Street Bob 114 | - | - |
| 2021 | Harley-Davidson | FLH Electra Glide Revival | - | - |
| 2020-2022 | Harley-Davidson | FLTRK Road Glide Limited | - | - |
| 2020-2022 | Harley-Davidson | FXST Softail Standard 107 | - | - |
| 2020-2021 | Harley-Davidson | FXLRS Low Rider S 114 | - | - |
| 2019-2022 | Harley-Davidson | FLHT Electra Glide Standard | - | - |
| 2019-2020 | Harley-Davidson | FXDRS FXDR 114 | - | - |
| 2018-2022 | Harley-Davidson | FLFBS Fat Boy 114 | - | - |
| 2018-2022 | Harley-Davidson | FLHCS Heritage Classic 114 | - | - |
| 2018-2022 | Harley-Davidson | FLTRXSE CVO Road Glide | - | - |
| 2018-2021 | Harley-Davidson | FLHC Heritage Classic 107 | - | - |
| 2018-2021 | Harley-Davidson | FLSB Sport Glide 107 | - | - |
| 2018-2021 | Harley-Davidson | FLSL Softail Slim 107 | - | - |
| 2018-2021 | Harley-Davidson | FXFBS Fat Bob 114 | - | - |
| 2018-2020 | Harley-Davidson | FXBB Street Bob 107 | - | - |
| 2018-2020 | Harley-Davidson | FLDE Deluxe 107 | - | - |
| 2018-2020 | Harley-Davidson | FXBRS Breakout 114 | - | - |
| 2018-2020 | Harley-Davidson | FXLR Low Rider 107 | - | - |
| 2018-2019 | Harley-Davidson | FXBR Breakout 107 | - | - |
| 2018-2019 | Harley-Davidson | FXFB Fat Bob 107 | - | - |
| 2018-2019 | Harley-Davidson | FLFB Fat Boy 107 | - | - |
| 2017-2022 | Harley-Davidson | FLHR Road King | - | - |
| 2017-2022 | Harley-Davidson | FLHRXS Road King Special | - | - |
| 2017-2022 | Harley-Davidson | FLHTK Ultra Limited | - | - |
| 2017-2022 | Harley-Davidson | FLHX Street Glide | - | - |
| 2017-2022 | Harley-Davidson | FLHXS Street Glide Special | - | - |
| 2017-2022 | Harley-Davidson | FLHXSE CVO Street Glide | - | - |
| 2017-2022 | Harley-Davidson | FLTRX Road Glide | - | - |
| 2017-2022 | Harley-Davidson | FLTRXS Road Glide Special | - | - |
| 2017-2021 | Harley-Davidson | FLHTKSE CVO Limited | - | - |
| 2017-2021 | Harley-Davidson | Electra Glide Police FLHTPI | - | - |
| 2017-2019 | Harley-Davidson | FLHTKL Ultra Limited Low | - | - |
| 2017-2019 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | - | - |
| 2017-2019 | Harley-Davidson | FLTRU Road Glide Ultra |
Payment & Security
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