- Updated profile to fit M8 models including the VVT models
- Big bore bolt-on kit increases your 114"/117" with 4.50" stroke M8 to 132" with no case machining required
- S&S oil pump/cam plate
- 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 pushrod tubes
- S&S premium tappets
- S&S hard anodized, black coated tappet cuffs are billet aluminum construction
- S&S valve springs; work with cams up to 0.605" lift
- High performance conical single wire spring design
- 496 cam designed for big bore applications
- MLS (multi-layered steel) head gasket
- Made in the USA
- Retains stock engine height.
- Works with stock crankcases.
- Works with the stock and S&S roller rocker arms.
- Original engine serial numbers are retained.
- Compatible with the stock valve springs, both first generation (round port) and second generation (oval port).
- Black granite with highlighted fins
- Chrome pushrod tubes
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2017-2021 | Harley-Davidson | CVO Limited FLHTKSE | |
| 2022-2023 | Harley-Davidson | CVO Road Glide Limited FLTRKSE | |
| 2026 | Harley-Davidson | CVO Road Glide ST FLTRXSTSE | |
| 2026 | Harley-Davidson | CVO Street Glide FLHXSE | |
| 2026 | Harley-Davidson | CVO Street Glide Limited FLHXLSE | |
| 2026 | Harley-Davidson | CVO Street Glide ST FLHXSTSE | |
| 2020-2022 | Harley-Davidson | CVO Tri Glide FLHTCUTGSE | |
| 2017-2019 | Harley-Davidson | Electra Glide Ultra Classic FLHTCU | |
| 2020-2024 | Harley-Davidson | Road Glide Limited FLTRK | |
| 2026 | Harley-Davidson | Road Glide Limited FLTRXL | |
| 2023-2025 | Harley-Davidson | Street Glide CVO FLHXSE | |
| 2026 | Harley-Davidson | Street Glide Limited FLHXL | |
| 2025 | Harley-Davidson | Tri Glide Ultra Classic FLHTCUTG | |
| 2017-2025 | Harley-Davidson | Tri Glide Ultra FLHTCUTG | |
| 2022 | Harley-Davidson | Tri Glide Ultra FLHTCUTG G.I. Enthusiast Collectio | |
| 2017-2024 | Harley-Davidson | Ultra Limited FLHTK | |
| 2017-2019 | Harley-Davidson | Ultra Limited Low FLHTKL | |