The '67 Shelby Mustang GT 500 can produce up to 355 brake horsepower. The power is produced by an eight-cylinder, water-cooled, 7.0-liter engine. This puts the efficiency of the engine at 51 bhp per liter.
The engine of the '67 Shelby Mustang GT 500 is also capable of producing 5,400 rpm of torque. At 1,490 kilograms, the GT 500 has a power to weight ratio of 0.24 bhp/kilogram. It can accelerate from zero to 60 mph in 4.8 seconds and has a top speed of 134 mph. The engine features a dual Holley four-barrel induction system and is naturally aspirated.