What was the factory new price for a 1970 Chevelle 454 SS convertible?

There's no single definitive answer to the factory price of a 1970 Chevelle SS 454 convertible. The price varied significantly depending on options. A base Chevelle convertible was already expensive, and adding the SS package and the massive 454 engine with its accompanying performance options pushed the price up considerably. Estimates place the price somewhere in the $4,500 - $5,000 range, but a fully loaded model could have easily exceeded that. You would need to consult original dealer brochures and price guides from 1970 for a truly precise answer for a specific configuration.