Pontiac Trans Am 455
The 1971 Firebird and Trans Am were practically identical to the 1970 models. But they still represented one of the best muscle cars on the rapidly changing market. And sadly, 1971 was the last true muscle car model year when buyers could get those high powered. legendary engines.
The 455 V8 delivered 335 HP. However, most muscle car enthusiasts argue they underrated the engine, so the numbers were conservative. In fact, even with higher compression in the Trans Am H.O. version, that 455 V8 had the same horsepower figure. So, the real output was closer to 400 HP with a powerful performance and top speeds.