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.
Step up to serious displacement with the S&S Cycle 124 cubic inch T124 Long-Block Engine, purpose-built for 2007-2016 Harley-Davidson Touring models. This engine is engineered for riders seeking a significant power upgrade without extensive modifications to their existing manifold or throttle body. Its low-compression design offers greater tolerance for varying fuel quality, making it an excellent choice for heavier bikes and long-haul riders.
The S&S Cycle T124 Long-Block Engine delivers a robust 124 cubic inches of displacement, providing a substantial increase in horsepower and torque over stock. Designed to be a direct replacement, it allows you to retain your factory manifold and throttle body, simplifying the upgrade process. Specially machined cylinder heads ensure optimal flow and combustion, contributing to the engine's impressive performance characteristics.
As a long-block engine, this unit requires the separate purchase and installation of an oil line kit, as well as a compatible fuel and ignition management system. Proper tuning will be essential to maximize the engine's potential and ensure long-term reliability. This T124 is not compatible with Twin-Cooled Harley Touring models, so confirm your bike's cooling system before ordering.
Will this T124 engine fit my Twin-Cooled Touring model?
No, this S&S Cycle T124 Long-Block Engine is not compatible with Twin-Cooled Harley-Davidson Touring models. Please verify your bike's cooling system before purchasing.
What additional parts are needed for installation?
This is a long-block engine, meaning you will need to purchase an S&S Cycle oil line kit separately. You will also need a compatible fuel and ignition management system and a proper dyno tune to ensure optimal performance.
Does this engine require a specific type of fuel?
The low-compression design of this T124 engine is built to tolerate variations in fuel quality, making it more forgiving than high-compression setups. However, always refer to the S&S Cycle installation guide for specific fuel recommendations.
| BRAND | S&S Cycle |
| TYPE | Engines |
| SKU | T14-661548 |
| 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😂💪🏿😎.
