Made to increase displacement from 88 ci to 100 ci, the 100" Power Package Engine Performance Kit delivers a complete big-bore upgrade for compatible Twin Cam engines. 🔧🇺🇸
This kit includes S&S 4.000" big-bore cylinders with low-friction ductile cast iron liners, precision hydraulic tappets, a TC3 cam support plate and TC3 oil pump, S&S 585 Easy Start® cams, S&S Quickee pushrods with chrome tubes, and full piston kits for front and rear.
- 2x 4.000" pistons, 2x 0.927" piston pins, 4x piston pin clips with installation tool.
- Ring packs include top, second, oil rail and expander rings to provide approximately 10.5:1 compression ratio.
- Bolt-in cylinders: no machining, balancing, or splitting the crankcase required; can be used with stock heads in many applications.
TC3 components are machined from aluminum forgings to ensure consistent oil pressure and long engine life, while precision hydraulic tappets maintain close tolerances and reduced valve train noise from start to shut down. ⚙️
Compatibility 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 characteristics. '99–'04 Twin Cams require the additional purchase of a valve spring kit (sold separately). Pinion shaft runout must be less than .003" for use with gear drive cams.
Includes necessary hardware for installation; professional installation is recommended to ensure correct setup and longevity.
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