S&S Cycle 310-1463 SSC Power Pack Big Bore Engine Kit for Milwaukee-Eight

The S&S Cycle 310-1463 SSC Power Pack is a complete, engineered big bore and cam chest performance kit designed for Harley-Davidson Milwaukee-Eight (M8) engines. S&S Cycle Power Packs bundle all the critical components needed for a significant displacement and performance upgrade into a single, matched package — eliminating the guesswork of sourcing individual parts and ensuring optimal compatibility between components.

S&S Cycle Power Packs are renowned in the V-twin performance industry for combining a big bore cylinder and piston kit with a fully upgraded cam chest, delivering a stage 4-level build in one coordinated solution. Components are engineered and tested together to maximize power output, reliability, and longevity.

Typical SSC Power Pack Includes:

• S&S big bore cylinders with forged pistons
• High-performance S&S camshaft (gear drive or chain drive, depending on variant)
• S&S performance oil pump and cam support plate
• Premium tappets and tappet cuffs
• Pushrods and pushrod tubes
• All required gaskets, bearings, seals, and hardware
• No crankcase machining required

Key Features:

• Made in the USA — engineered and manufactured in Viola, Wisconsin
• Updated cylinder fin profile for improved heat dissipation
• Forged pistons for enhanced strength and durability
• Billet aluminum construction on cam chest components
• Hard anodized black coating for corrosion resistance
• Compatible with oil-cooled or water-cooled M8 platforms (confirm variant)
• Engineered as a matched system for best bolt-in performance

S&S Cycle has been the benchmark for American V-twin performance since 1958. The SSC Power Pack line delivers a complete, high-output engine upgrade solution backed by decades of motorsport engineering expertise.