Description
S&S Cycle 129″ Power Package Engine Performance Kit 550 Gear Drive for ’17-26 Harley Davidson Oil Cooled Touring and ’18-26 Softail – Wrinkle Black w/Highlighted Fins/ Chrome Pushrod Tubes
- Big-bore bolt-on kit increases 107″ M8 to 129″ with no case machining required
- 4.32″ bore cylinders with 11.0:1 compression ratio 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
- S&S premium tappets
- S&S hard-anodized, black coated tappet cuffs are billet aluminum construction
- S&S 550 cams are designed for big bore applications
- S&S valve springs work with cams up to 0.605″ lift
- High-performance conical single wire spring design
- Made in the USA
Notes
- Will fit VVT models.
- Not for any Trike models.
- Intake/rocker cover gaskets not included.
DISCLAIMER: Not legal for sale or use in California on any pollution controlled motor vehicles.






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