The engine types may include 4.3L 262Cu. V6 GAS OHV Naturally Aspirated,4.8L 294Cu. V8 FLEX OHV Naturally Aspirated,5.3L 5328CC 325Cu. V8 GAS OHV Naturally Aspirated,6.0L 5967CC 364Cu. V8 FULL HYBRID EV-FLE X (FHEV) OHV Naturally Aspirated,6.2L 6162CC 376Cu.
