Description
The S&S Cycle Power Package delivers the displacement and precision engineering your M8 demands for serious power gains without compromising reliability. This bolt-on big bore kit transforms your 107″ engine to 124″ displacement using forged pistons and a meticulously engineered oil cooling system—all without case machining. Whether you’re pushing track times or demanding peak performance on the street, this package provides the engineering foundation to support forced induction and high-RPM abuse.
- Displacement: 107″ to 124″
- Bore diameter: 4.250″
- Compression ratio: 10.5:1
- Piston material: Forged
- Installation: Bolt-on, no case work
- Oil pump: Billet aluminum, precision machined
- Pump finish: Blue anodized
- Scavenge: Independent sections (flywheel/cam chest)
- Debris protection: Magnetic pickup, dual screens
- Relief valve: Adjustable, installed in-engine
- Pushrods: S&S Quickee design
- Pushrod tubes: Gloss black finish
- Tappets: S&S precision units
- Tappet cuffs: Hard-anodized billet aluminum
- Case finish: Wrinkle black (non-highlighted)
- Fitment: Harley M8 engines
- MPN: 310-1059A
