S&S Cycle has built American V-twin performance parts in Viola, Wisconsin since 1958 — flywheels, carburetors, cams, cylinder heads and complete crate engines. When a Harley owner talks about a 124, a 128 or a 131 build, they are usually talking about S&S. Few names carry more weight with engine builders in this space.
The S&S Cycle T124 Long-Block Engine delivers a massive 124 cubic inches of displacement for 2007–2016 Harley-Davidson Touring models. Engineered with a lower compression tuning, this long block is ideal for riders seeking fuel tolerance and robust performance on heavier bikes. It provides a potent foundation for a custom-tuned, high-horsepower V-twin.
When maximum displacement and robust power are your goals for a 2007–2016 Harley-Davidson Touring model, the S&S Cycle T124 Long-Block Engine stands ready. This 124 cubic-inch powerhouse is built to provide an incredible increase in torque and horsepower, offering a thrilling riding experience. Unlike some high-strung performance engines, the T124 long block features lower compression, making it more forgiving with various fuel types and an excellent choice for heavier baggers or trikes. It's the ultimate starting point for a truly custom and high-performing V-twin.
The S&S Cycle T124 Long-Block Engine provides the core of a high-performance build, allowing you to customize your fuel system and ignition to match your exact needs. Its compatibility with larger throttle bodies and EFI tuners means you have the flexibility to dial in the perfect setup for your riding style and other modifications. While this is a long block, meaning it doesn't include the fuel system or ignition, it gives you the freedom to integrate your preferred components for a truly bespoke performance machine. Ensure to verify fitment for your specific Harley Touring model, as it is not suitable for Twin-Cooled or Softail models.
Will this T124 long-block engine fit my Harley Tri-Glide or three-wheel trike?
This T124 long-block engine is not recommended for Tri-Glide or three-wheel trike models. The T-series engine may not perform reliably on heavier three-wheel platforms.
Does this long block come with a fuel system and ignition?
No, this is a long block engine only. It does not include the fuel system or ignition. You will need to reuse your existing components or source new, compatible aftermarket parts.
Is this engine compatible with Twin-Cooled Harley Touring models?
No, this S&S Cycle T124 Long-Block Engine is specifically noted as not fitting Twin-Cooled Harley Touring models. Please confirm your cooling system type before ordering.
| BRAND | S&S Cycle |
| TYPE | Engines |
| SKU | T14-619468 |
| WEIGHT | 160.0 lb |
I have the 124 in a 2002 Harley Davidson Electra glide classic, the best thing I did to my bike was the have this motor installed, the power is A-1 , you can't go wrong with this, I'm very happy with this product by S&S😂💪🏿😎.
