The first engine is the 5.3 liter V8 engine. This engine comes standard on all 2WD models, and produces 320 horsepower and 340 lb-ft of torque. Its block is cast entirely out of iron, which makes it able to handle high compression ratios. An aluminum block version of this engine also exists. However, this engine has a slightly lower power rating at 310 horsepower and 335 lb-ft of torque. Due to its smaller numbers, this engine also has increased fuel economy. A user of this engine can expect 20 miles per gallon on the highway, and 16 miles per gallon in the city.
The 2010 Chevrolet Avalanche