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- Big Bore Kit:
- Bolt on kit. No case machining required
- 4.250" bore
- Forged pistons
- 11.1: compression ratio
- Oil Pump/Cam Plate
- Precision machined from billet aluminum
- Passage plugs removable for servicing
- Independent scavenge sections for flywheel cavity and cam chest
- Debris screens in both scavenge pickups
- Magnet in cam chest to help to stop debris from entering oil pump
- Increased flow capacity on both feed and scavenge side
- Pressure Relief Valve is adjustable with unit installed in engine
- Pushrods:
- Quickee pushrods
- Tappets:
- S&S premium tappets
- Tappet Cuffs:
- Billet aluminum construction
- Stronger than stock material eliminates distortion
- Improve tappet stability in high lift and high rpm situations
- Cam:
- S&S 550 Cam- Designed for Big Bore applications
- Valve Springs:
- Work well with cams up to .605 lift
- High-performance conical single wire spring
- Made in the U.S.A.
- S&S Cycle OEM # 310-1109B
Note
Fits Harley-Davidson Milwaukee-Eight 114 (oil cooled)
