Before the Fury was a separate model, it was an option on Belvedere. For 1958, this model benefited from Chrysler’s new Golden Commando engine. The mighty Hemi was gone, but Chrysler didn’t abandon the performance market. The Golden Commando had 350 CID displacement, hotter equipment, and 305 HP (via Old Cars Weekly).
Plymouth even experimented with a fuel injection setup. But the system proved very problematic, which caused the factory to compensate owners with a conventional four-barrel format. If the fuel injection worked as it should, it could produce up to 315 HP.