The Trans Am went through a total of four generations, changing each time the Firebird was redesigned. The 1969 Pontiac Trans Am featured a selection of Ram Air engines. The base engine was the Ram Air III 400, while the top engine, the Ram Air V 400, could pump out an amazing 500 horsepower.
The 1970 Trans Am was the last to feature the Ram Air engines. After than the car switched to the 455, the 455 HO (High Output) and SD-455 (Super Duty) in 1973. A 403 Oldsmobile V8 was the base model starting in 1977 as power began to decrease. The Pontiac W72 was the top engine option for that year through 1979.
The engines would continue to get lighter and less powerful as the Trans Am entered the 1980's. The 301 Turbo from Pontiac was the top engine for 1980 and 1981. The 305 woudl be the engine of choice on most Trans Ams bought in the decade, whether it be the Throttle Body Injection or Tuned Port Injection variety. The Cross-Fire Injection 305 was also sold in limited numbers in 1982 and 1983. The Buick 231 Turbo was sold in only one year, 1989.
The 1991 and 1992 Trans Ams had a body style that was not like either the 3rd or 4th generation models. The featured the 305 and 350 engines.
From 1993 to 2002, the Trans Am came with either a LT1 or LS1 engine, with the LT1 being sold until 1997 and the LS1 sold after that.
During its lifetime, the Pontiac was sold as a 2 door coupe, 2 door convertible, and even a 3 door liftback from 1982 to 2002.
The Trans Am is a source of pride among Pontiac fans. It is among the top performance Pontiacs ever made, especially with the right engine configuration. They tend to be underrated by some muscle car fans, but be careful challenging one to a race.
If you are looking to buy a used Trans Am from the modern era or a classic Trans Am muscle car, you should check out the prices on eBay first. There are also parts listings there for your Trans Am fixer-upper.