Description
The S&S Cycle T124 Series Long Block delivers genuine street performance with a 10.8:1 compression ratio and 124 cubic inches of displacement—purpose-built for riders who demand power without compromise. This is a complete engine platform for serious Harley touring applications, engineered with S&S’s proven reliability and backed by meticulous cylinder head machining that ensures seamless integration with stock-length intake manifolds. If you’re running a 2007–’16 Touring model and want to move beyond bolt-on upgrades, this is the foundation that transforms your bike.
What You Need to Know Before Purchasing: This is a long block only—you’ll need to source your own fuel system and ignition management (a quality aftermarket EFI tuner is essential for an engine this large). Installation requires a separate oil line kit. Not compatible with Softail, Tri-Glide, or three-wheel models. Two-year manufacturer warranty included.
- Displacement: 124 cubic inches
- Bore: 4-1/8″
- Stroke: 4-5/8″
- Compression ratio: 10.8:1
- Camshaft: S&S 640 Easy Start
- Piston type: Forged flat-top
- Crankcase & heads: Super Stock
- Oil pump: High-flow S&S TC3
- Head machining: Stock-length manifold compatible
- Breather locations: Stock-position mounting
- Finish: Black wrinkle powder coat
- Fitment: 2007–’16 HD Touring (non-Twin-Cooled)
- Installation: Requires separate oil line kit
Wire transfer required to order. Does not ship free. Call to order 231-767-5055. Excluded from additional discounts.







