Shelby GT500:
New 5.8-liter Supercharged V8
The big news for the 2013 Shelby GT500 is the new 5.8-liter supercharged V8. Nearly every part of the engine differs from the old 5.4-liter engine with new cross-drilled block and heads, updated camshaft profiles, a new TVS 2300 series supercharger and an upgraded cooling system. The result is 650 horsepower and 600 lb-ft torque, making the 5.8-liter V8 the most powerful production V8 engine in the world and allowing the GT500 capable of reaching 200 mph.
The rest of the powertrain has been updated as well with a new carbon fiber driveshaft, upgraded clutch, transmission and axle. A final drive ratio of 3.31:1 is now standard.