How many 1973 Pontiac Firebird Trans Am SD-455 Super Duty is still out there, waiting to be restored and to be driven? Today’s ‘73 Trans Am 455 Super Duty is a true survival car, numbers matching in outstanding condition. This particular is 1 of 180 ever built in this configuration.
The 1973 Pontiac Firebird Trans Am SD-455 Super Duty was the last high-performance vehicle before regulations take down their performances. Although the Pontiac engineers manage to keep his attitude live, which is comfort, handling, and powerful engine under the hood.
This ’73 Super Duty 455 it is powered by a Pontiac 455 cubic-inch, 7.5-liter big-block V8 engine. This engine with a Rochester 800-cfm Quadrajet carburetor is producing 310 horsepower and 390 lb.-ft. of torque. Behind the engine, there is a Turbo Hydra-Matic 400 3-speed automatic transmission connected to a 3.42:1 rear-end.