S&S Cycle SS310-0829 V111 Black Edition Longblock Engine for Harley-Davidson Evolution 84-99 ModelsWhy rebuild that old stock engine? Upgrade, and replace it with an all new S&S V111 engine. Get a 2 year warranty and a lot more power! S&S V111 engines are perfect for applications that require great horsepower and torque, but not at the expense of dependability and engine life. They are similar to the V124 engines, but the shorter stroke results in lower piston speed for longer engine life, and less vibration. The lower compression ratio makes fuel