The engine types may include 4.3L 262Cu. V6 FLEX OHV Naturally Aspirated,5.3L 5328CC 325 Cu. V8 FLEX OHV Naturally Aspirated,5.3L 5328CC 325Cu. V8 GAS OHV Naturally Aspirated,5.3L 5328CC 325Cu. V8 MILD HYBRI D EV-GAS (MHEV) OHV Naturally Aspirated,6.0L 5967CC 364Cu.
