5.3L - 8-cyl ( Description: 8-cyl Engine Code [T]; Fuel: Gasoline; Engine Code: [T]; )
5.3L - 8-cyl ( Description: 8-cyl Engine Code [Z] Flex-fuel; Engine Code: [Z]; )
6.0L - 8-cyl ( Description: 8-cyl Engine Code [U]; Fuel: Gasoline; Engine Code: [U]; )
8.1L - 8-cyl ( Description: 8-cyl Engine Code [G]; Fuel: Gasoline; Engine Code: [G]; )