Description
If you’re serious about extracting maximum displacement and reliability from your M8, the S&S Cycle Power Pack delivers genuine performance gains through precision engineering. This 114″ to 128″ big bore kit combines a forged 4.250″ bore with a billet aluminum oil pump system designed to handle the increased demands of a larger displacement engine. You get the displacement advantage without case machining—bolt it in and immediately unlock more power and torque across the entire RPM band.
Technical Specifications:
- Big Bore: 114″ to 128″
- Bore Diameter: 4.250″
- Piston Type: Forged
- Compression Ratio: 11.1:1
- Finish: Black Granite
- Case Machining: Not required
- Oil Pump: Billet aluminum
- Pump Finish: Blue anodized
- Scavenge System: Independent sections
- Debris Protection: Dual screens + magnet
- Relief Valve: Adjustable (installed)
- Pushrods: Quickee w/ chrome tubes
- Tappets: S&S precision grade
- Tappet Cuffs: Billet aluminum
- Cuff Coating: Hard anodized black
- Fitment: M8 Harley-Davidson
- MPN: 310-1108A
