The horsepower of a 1977 Corvette varied significantly depending on the engine option selected. There wasn't one single horsepower figure. The available engines and their approximate horsepower ratings were:
* L48 350 CID small-block: Around 185 hp
* L82 350 CID small-block: Around 210 hp
Therefore, you need to know the specific engine in the 1977 Corvette to determine its horsepower.