S&S CYCLE 100" Power Package Engine Performance Kit — 4.000" bore, 100" displacement, 10.5:1 compression – 99-06 Touring, 00-06 Softail, 99-05 Dyna, 01-02 CVO

Made in the USA, this S&S Power Package is a complete bolt-in engine performance kit that brings durable, street-ready upgrades to compatible twin-cam engines. The kit includes big-bore S&S cylinders, piston kits with pins and clips, S&S Easy Start® cams, Quickee pushrods with chrome tubes, a TC3 cam support plate and TC3 oil pump, plus precision hydraulic tappets. 🔧🔥

The cylinders use a low-friction ductile cast iron liner and install without case machining, balancing, or splitting. Pistons come with full ring packs and installation tooling to help ensure consistent compression and reliability. The TC3 components are machined from aluminum forgings to maintain oil pressure and extend engine life.

• Complete cylinder and piston assemblies for front and rear
• Piston pins, clips and installation tool included
• S&S Easy Start® cam with performance lobe profiles
• Adjustable Quickee pushrods with chrome tubes
• TC3 cam support plate and oil pump for consistent lubrication
• Precision hydraulic tappets for reduced valve-train noise

Important fitment notes: not for '06 Dyna. Not compatible with S&S 79 cc Super Stock® heads. Not recommended for Tri-Glide or other three-wheel models due to lugging. '99–'04 Twin Cams require an additional valve spring kit (sold separately).