What is the horsepower rating of a 1974 Corvette?

The horsepower rating of a 1974 Corvette varied significantly depending on the engine option chosen. There wasn't a single horsepower figure. The available engines and their approximate horsepower ratings were:

* Small Block 350: Around 165-245 hp depending on the specific carburetor and other options. The lower end was for emissions-strangled versions.

* Big Block 454: Around 270-275 hp. Again, lower than previous years due to emissions regulations.

You'd need to know the specific engine code (found on the engine itself or in the vehicle's documentation) to determine the exact horsepower for a particular 1974 Corvette.