What are the Engine specs and hp for a 1990 caprice with 350 police package?

The 1990 Chevrolet Caprice Police Package came with a 5.7L (350 cubic inch) small-block V8 engine. However, the exact horsepower rating varied slightly depending on the year and specific calibration. While often advertised as around 230 hp, the actual output could be a bit higher or lower, depending on factors such as the specific carburetor or fuel injection setup and the condition of the engine. You're unlikely to find an exact horsepower figure in official documentation without a very specific build sheet for that individual car. The torque would have been significantly higher though, an important factor in a police vehicle.