designation from the base engine, and simply decaled the now non-functioning shaker with “455”. Horsepower for the base L75 455 was rated at rpm and 370 lb/ft rpm. The base 455 produced 40 fewer horsepower than the round port Super Duty 455. The 1973 Trans Am engine displaced 455 cubic inches in the base L75 and the Super Duty LS2 option. There were extra steel reinforcements in the bumper and core support to the fender. The 1973 Firebird also had to meet the new safety and emissions requirements for 1973. New engine and transmission at that time as well. The new “Horse Collar” optional custom interior featured new seat coverings and door panels. 1974 Pontiac Firebird Black Automatic 16,250 64850, Neosho, Dodge County, WI 1974 2,540 Miles This car was a project done around 8 years ago. Inside the 1973, Firebird the standard interior equipment was almost the same as prior years. The “Trans Am” decals were larger than previous versions and shared the same accent color schemes as the hood bird. ![]() The new hood bird was option “RPO WW7 Hood Decal”, a $55 option exclusive to Trans Am. Other exterior upgrades included the updated more modern nose bird. In 1973, the Trans Am added two new colors, Buccaneer Red and Brewster Green. This generation of Firebirds were available in coupe form only after the 1969 model year, convertibles were not available until 1989. Never had a chance to speak with the owner to get all the details on. The second-generation debut for the 1970 model year was delayed until February 26, 1970, because of tooling and engineering problems thus, its popular designation as a 1970½ model, while leftover 1969s were listed in early Pontiac literature without a model-year identification. I caught this rare all original super duty 455 at a recent car show. The name "Firebird" was also previously used by GM for the General Motors Firebird in the 1950s and early 1960s concept cars. ![]() This also coincided with the release of the 1967 Mercury Cougar, Ford's upscale, platform-sharing version of the Mustang. Designed as a pony car to compete with the Ford Mustang, it was introduced on February 23, 1967, five months after GM's Chevrolet division's platform-sharing Camaro. ![]() The Pontiac Firebird is an American automobile that was built and produced by Pontiac from the 1967 to 2002 model years. THIS 1973 PONTIAC FIREBIRD IS LOCATED IN: BRIGHTON, CO 80603
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