1973 Chevrolet Corvette Stingray 454 LS4 â?" Last of the Big Block C3s in Mille Miglia Red Why This Car Is Special The 1973 Chevrolet Corvette Stingray holds a specific and permanent place in Corvette history for two reasons that collectors have been paying attention to for decades. First, 1973 was the first year Chevrolet fitted the C3 Corvette with a body-colored urethane front bumper â?" a cleaner, more integrated look that replaced the chrome bumperette design used since 1968. Second, and more important to this particular car, 1973 was the last year Chevrolet offered the 454 cubic inch big block V8 in the Corvette. After 1973, the 454 was gone from the Corvette option sheet permanently.
