Bottom End

Replacement Flywheel Assemblies for Twin Cam MotorsS&S 3-piece flywheels with integral main shafts are the strongest yet, made from 4140 steel and feature a larger 1.671" crankpinFlywheel assemblies are designed for use with Timken bearing conversionFit...

Cam Chest Kit Without Cams - Gear Drive - Oil Cooled - Chrome Pushrods - Twin Cam 310-1269

Cam Chest Kit Without Cams - Gear Drive - Oil Cooled - Black Pushrods - Twin Cam 310-1268

Cam Chest Kit Without Cams - Gear Drive - Oil Cooled - Chrome Pushrods - Twin Cam 310-1267

Cam Chest Kit Without Cams - Gear Drive - Oil Cooled - Black Pushrods - Twin Cam 310-1266 Harley-Davidson -- Wide Glide FXDWG -- (2004, 2000, 2002, 1999, 2001, 2003, 2005); Harley-Davidson -- Softail Springer FXSTS -- (2000, 2002, 2004, 1999, 2001, 2006,...

Cam Chest Kit Without Cams - Chain Drive - Water Cooled - Black Pushrods - M8 310-1264

Cam Chest Kit Without Cams - Gear Drive - Water Cooled - Chrome Pushrods - M8 310-1261

Cam Chest Kit Without Cams - Gear Drive - Water Cooled - Black Pushrods - M8 310-1260

S&S Cycle Engine Case - Mk-Series - M8 Touring 310-1170 Harley-Davidson -- CVO Street Glide FLHXSE -- (2017, 2020, 2021, 2019, 2018, 2022, 2023); Harley-Davidson -- Electra Glide Standard EFI FLHTI -- (2021, 2020, 2022, 2019); Harley-Davidson -- Street...

Stock or 4-1/8" bore crankcases to be used as a foundation for a custom engine or replacement for T111, T124, or T143Stock looking, but stronger; thicker wall sections and superior 356-T6 aircraft grade aluminumTough powder coat finishesReinforced front...

High Compression, 10.8:1 for the ultimate in street performanceNo fuel system or ignition systems includedSpecial head machining fits stock length intake manifolds (S&S manifold size 410)Stock style breathing system; compatible with stock and most...

Stock or 4-1/8" bore crankcases to be used as a foundation for a custom engine or replacement for T111, T124, or T143Stock looking, but stronger; thicker wall sections and superior 356-T6 aircraft grade aluminumTough powder coat finishesReinforced front...