The TrailBlazer SS boasts a 6.0-liter V8 cranking out 390 hp and 400 lb-ft of torque, mated to a heavy-duty four-speed automatic. For the SS, one may choose standard 2WD or an available full-time AWD system that maximizes street performance instead of off-road ability. Either way, the SS is seriously quick and can hit 60 mph in just 6.3 seconds. Maximum towing capacity varies from 5,900 pounds on six-cylinder models to 6,800 pounds with either of the two V8s.