S&S Cycle T111 Twin Cam Engine for 1999-2017 Harley-Davidson Dyna and Touring
The S&S T111 turns a Twin Cam Dyna or Touring into a different machine — one that pulls harder out of corners, settles into a confident cruise at any highway speed, and reminds you on every ride why you chose a V-twin in the first place. A shorter-than-stock profile and easy-start gear drive cams mean the installation is clean and the first kickover is anything but dramatic.
Key Features
- Not compatible with Harley-Davidson Softail models or Twin-Cooled models — fits Dyna and Touring platforms only; see fitment table for full details
- 111-cubic-inch displacement for a substantial power and torque increase over stock Twin Cam engines
- S&S Easy Start 585 or 640 gear drive cams — choose the cam profile that fits your riding style
- Shorter than stock height for easier installation in existing chassis
- Short-stroke design reduces vibration and contributes to longer engine life
- Electronic compression releases for effortless starting
- Large cooling fins for improved thermal management
- S&S forged rocker arms and high-flow oil pump
- Gloss black rocker covers, gear cover, tappet blocks, and pushrod tubes
- Uses stock intake, throttle body, and air cleaner — not included
- Available in Black, Black Edition, and Silver finishes
- Made in the USA
- Two-year warranty
Technical Specifications
- Displacement: 111 cubic inches
- Compression Ratio: 9.8:1
- Cam Options: S&S Easy Start 585 gear drive or S&S Easy Start 640 gear drive
- Cam Drive: Gear drive
- Rocker Arms: S&S forged
- Oil Pump: S&S high-flow
- Compression Releases: Electronic
- Intake / Throttle Body / Air Cleaner: Not included — uses stock components
- Finish Options: Black, Black Edition, Silver
- Dimensions — 1999-2006 Black (L x W x H): 26″ x 24″ x 20″
- Dimensions — 1999-2006 Silver / Black Edition and 2007-2016 Touring Black Edition (L x W x H): 26.5″ x 24.56″ x 20.06″
- Dimensions — 2007-2016 Touring Black (L x W x H): 27″ x 25″ x 20″
- Emissions: Not legal for sale or use in California on pollution-controlled motor vehicles. Not legal for sale or use on any EPA pollution-controlled motor vehicle.
- Origin: Made in USA
- Warranty: Two years
Fitment Notes
- Not compatible with any Harley-Davidson Softail model — this is an absolute exclusion regardless of year
- Not compatible with Twin-Cooled Touring models (select 2014-2016 models)
- Three fitment groups apply — select the correct variation for your year and platform: 1999-2006 non-Softail Twin Cam (except 2006 Dyna); 2006-2017 Dyna; 2007-2016 Touring
- Cam selection (585 or 640) does not affect chassis fitment — choose based on power preference
- Uses stock intake, throttle body, and air cleaner — these components are not included
- Review the Fitment tab for a complete year and model breakdown












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