* 400 cubic inch (6.6L) V8: This was the most popular choice. Several variations existed within this displacement, offering different horsepower ratings depending on the carburetor and other specifications.
* 301 cubic inch (4.9L) V8: A smaller, more fuel-efficient option, but with less power than the 400.
* 265 cubic inch (4.3L) V8 (rare): This was the least powerful and least common engine. A six-cylinder engine was offered in 1979, but not on Trans Ams.
To know the *exact* engine in a specific 1979 Trans Am, you'd need to check the vehicle's documentation (like the owner's manual or vehicle identification number (VIN) decoding) or look at the engine itself.
