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S&S® T111 Motorcycle Engine

S&S T111 engine for twin cam motorcycles

Those used to looking at dyno charts of high performance engines may wonder why the T111 does not make more horsepower on the top end. That’s because it is a bona fide touring engine. Thanks to the S&S® Super E carb, moderate compression ratio, and mild cams, it has a lot of torque and a broad power curve making passing vehicles, climbing hills, and accelerating up to highway speed as simple as twisting the throttle. We recommend the S&S T124 engine for customers who are looking for big horsepower numbers.

The T111 is a powerful yet quiet motorcycle engine perfect for touring riders. A practical stroke, less aggressive touring cam, and nearly silent valve train create a torquey, smooth power band – making your bike a pleasure to ride for long distances. Lower cost and superior engine life.


The T111 will only fit in place of 1999-’05 fuel injected engines and 1999-’06 carbureted engines

S&S does not offer full replacement engines for 2006 Dyna® models, any 2007-up models, or any counterbalanced engines, such as Twin Cam 88B™. However, see our T-Series Long Block Engines.

Features and Benefits

  • Installs easily into stock frames
  • “Square” motor configuration (equal bore and stroke) produces excellent torque, greatly increases engine life, and reduces mechanical engine noise
  • S&S 585GP gear driven cams and lightweight single coil Sidewinder® valve springs further reduce valve train noise
  • Silver powder coat or wrinkle black powder coat finish
  • Chrome gearcover and tappet covers
  • Trademark S&S teardrop air cleaner

Fuel Injected Engines (2002-'05)

  • Delphi® style S&S Variable Fuel Injection (VFI) module with built-in three stage engine overheat protection
  • Closed loop fuel system, dual oxygen sensors provide air-fuel ratio feedback for correct fuel delivery under any condition
  • Included S&S ProTune II software CD provides base fuel maps for most aftermarket exhaust systems
  • Delphi style knock sensor module eliminates knock and prolongs engine life Break-in rev-limiter prevents high RPM during break-in
  • Single bore throttle body with teardrop air cleaner
  • Three-year warranty


Carbureted Engines

  • S&S Super E carburetor with teardrop air cleaner cover
  • Knock sensing ignition control prolongs engine life by automatically adjusting timing to eliminate knock by learning and storing ignition requirements of the engine
  • Guardian feature protects engine with a 3 step break-in rev-limiter
  • Three-year warranty
Displacement Bore Stroke Cam Piston Type CR Chassis Style Fuel Delivery Ignition Warranty
Silver Black
111" 4 1⁄8" 4 1⁄8" 585GP S&S Forged 9.8:1 1999-'06 Carb S&S® Super E Carburetor IST® 3 Years 106-4431 106-4430
2002-'05 FI Delphi® style VFI VFI  3 Years 106-4433 106-4432
CTO Specify Specify Varies


Not legal for sale or use on CA or EPA pollution controlled vehicles.


Click here to see our T-Series Long Block engines!