What is the horsepower of a trailblazer 250?

The horsepower of a Trailblazer 250 varies depending on the year and specific model. There's no single answer. However, you'll generally find that they range from approximately 16 to 20 horsepower. To find the exact horsepower for your specific Trailblazer 250, you should consult your owner's manual or search online using the specific year and model number.