S&S Cycle 128 Inch Power Package Big Bore Kit M8 17-22 Water/Oil Cooled
- Fits 2017-2022 water/oil cooled 114/117 inch M-Eight engines (Will not fit oil cooled engines)
- Big-bore bolt-on kit with no case machining required
- 4-1/4″ Bore cylinders with 11:1 forged pistons
- S&S oil pump/cam plate with a 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 (gear or chain drive cams available)
- 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 included
- Made in the U.S.A..
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