4.3L 262Cu. In. V6 GAS OHV Naturally Aspirated 15 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated 16 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated 16 6.5L 395Cu. In. V8 DIESEL OHV Naturally Aspirated 16 6.5L 395Cu. In. V8 DIESEL OHV Turbocharged 16