* The base engine was a 3.4L V6 which produced approximately 200-220 horsepower. The exact figure varied slightly depending on specifics.
* The more powerful option was the 5.7L LS1 V8, which produced around 335 horsepower. This is the engine most people associate with the 1998 Trans Am.
Therefore, there's no single answer. You need to know which engine the specific Trans Am had to determine its horsepower.
