page_title: Chevrolet Impala (fifth generation)
section_title: 1973
hierarchical_section_title: Chevrolet Impala (fifth generation) / History / 1973
caption_attribution_description: English: 1973 Chevrolet Impala Custom Coupe
context_page_description: The fifth-generation Chevrolet Impala were full-sized automobiles produced by Chevrolet for the 1971 through 1976 model years and was one of GM's top-selling models throughout the 1970s. Models included a sport coupe using a semi-fastback roofline shared with other B-body GM cars, custom coupe with the formal roofline from the Caprice, four-door sedan, four-door hardtop sport sedan, and a convertible, - each of which rode on a new 121.5-inch wheelbase and measured 217 inches overall. Station wagons rode on a longer 125-inch wheelbase.
context_section_description: 1973 Impalas featured a larger, shock-absorbing front bumper due to new federal mandates which required 5-mile-per-hour (8.0 km/h) impact protection. The chassis was tweaked for better roadability, and new square taillights were mounted in the carry-over rear bumper. With the convertible now moved to the top-line Caprice Classic series, (continuing through 1975) Impalas were now all closed body styles for the first time in the nameplate's history and the station wagon known as the Kingswood since 1969 rejoined the Impala series. A 145-horsepower 350 cubic-inch Turbo Fire V-8 engine, Turbo Hydramatic transmission, variable ratio power steering and power front disc brakes were standard on all Impalas. Optional engines in all models included a 175-horsepower 350 Turbo Fire V8 with four-barrel carburetor and 245-horsepower 454 Turbo Jet V8; while the Impala Custom coupe, Sport Sedan and station wagons could be ordered with the 165-horsepower 400 Turbo Fire V8 that was standard on that year's Caprice Classic series. All engines were offered nationwide in 1973.
caption: 1973 Impala Custom Coupe
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