Cylinder Block
WARNING: This page is about a different car, the 2006 GMC Yukon XL, 2006 Chevrolet Suburban, and 2006 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
The engine block is made of cast iron and it has 8 cylinders arranged in a 90 degree V shape with 4 cylinders in each bank. The engine block is a 1 piece casting with the cylinders encircled by coolant jackets.