Vortec® 5.3L V8 SFI engine with Active Fuel Management® and E85 FlexFuel capability

This engine gives you more while demanding less. The innovative Active Fuel Management® delivers added power when needed and better efficiency when it isn’t by deactivating four of the eight cylinders automatically when traveling on level ground. The E851 capability allows the engine to run on unleaded or up to 85% ethanol, giving you more options at filling time. Constructed with an iron block for added strength and rigidity, it is available on 2WD 1/2-ton models only.

When running on regular unleaded, it provides 320 hp @ 5400 rpm and 335 lb-ft of torque @ 4000 rpm; the city/highway EPA estimated MPG is 15/21.2 Using E85 ethanol, it offers 326 hp @ 5300 rpm and 348 lb-ft of torque @ 4400 rpm; the city/highway EPA estimated MPG is 11/16.

1 E85 is a combination of 85% ethanol and 15% gasoline. Go to www.chevy.com/biofuels to see if there is an E85 fuel station near you.