Description
The S&S Cycle T143 is the largest displacement engine S&S manufactures for stock Harley-Davidson touring chassis—delivering nearly double the horsepower of factory powerplants without requiring frame modifications. Built with CNC-machined components and premium internals, it’s engineered for riders who demand maximum performance while maintaining chassis integrity. This is a purpose-built race engine that requires experienced installation, tuning expertise, and an accomplished rider; it prioritizes power output over everyday rideability.
- 143 cubic inches displacement
- 143cc long-block configuration
- Fits 2008–’16 HD touring models
- Stock chassis compatible—no modifications
- S&S B3 CNC-machined heads
- Two-bolt exhaust flanges
- Super Stock T2 crankcases
- Reed breather valve included
- Three-piece flywheel assembly
- High-flow S&S oil pump
- TC3 cam plate
- 635 Easy-Start gear cams
- 1.75:1 rocker arm ratio
- .674″ total valve lift
- Premium high-performance tappets
- Wrinkle black powder coating
- Oil line kit required separately
- Carburetor/intake not included
- Ignition system not included
- T143-specific exhaust required
- One-year parts warranty
- NOT compatible with Softail models
- NOT compatible with Twin-Cooled models
Wire transfer required to order. Does not ship free. Call to order 231-767-5055. Excluded from additional discounts.
