

S&S CYCLE 128" Power Package - Chain Drive - Wrinkle Black with Highlighted Fins - Oil Cooled 114"/117" M8
Features
- Made in the USA
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 camchest
- Debris screen in both scavenge pickups
- Magnet in camchest 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
- Not recommended for Tri-Glide or other three wheel models including conversion due to lugging nature of these bikes.
CALIFORNIA WARNING: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. Not legal for sale or use on any EPA pollution controlled motor vehicle.
Specs
| Product Name | Performance Kit |
| Type | Engine |
| Style | Big Bore |
| Model | Power Package |
| Color/Finish | Highlighted Fins / Wrinkle Black |
| Stroke Length | 4.50" |
| Displacement | 128" |
| Bore Size | 4.250" |
| Compression Ratio | 11.1:1 |
| Cam Drive Type | Chain |
| Cooling System | Oil Cooled |
| Units | Kit |
| Riding Style | Street |
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Features
- Made in the USA
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 camchest
- Debris screen in both scavenge pickups
- Magnet in camchest 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
- Not recommended for Tri-Glide or other three wheel models including conversion due to lugging nature of these bikes.
CALIFORNIA WARNING: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. Not legal for sale or use on any EPA pollution controlled motor vehicle.
Specs
| Product Name | Performance Kit |
| Type | Engine |
| Style | Big Bore |
| Model | Power Package |
| Color/Finish | Highlighted Fins / Wrinkle Black |
| Stroke Length | 4.50" |
| Displacement | 128" |
| Bore Size | 4.250" |
| Compression Ratio | 11.1:1 |
| Cam Drive Type | Chain |
| Cooling System | Oil Cooled |
| Units | Kit |
| Riding Style | Street |















