When launched in 2004, it had a 5.7-liter LS1 V8 under the hood from the Corvette, which made 350 hp and 365 lb-ft of torque, capable of delivering a five-second 0-60 time, a sub-14-second quarter ...

The new 5.7-liter LS1 V-8 powerplant available with the Firebird Formula and Trans Am models features revised performance resulting in 305 horsepower without Ram Air and 320 horsepower with Ram Air.