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Standard Vortec 4.8L V8: 285 hp, 295 lb-ft of torque
Available Vortec 6.0L V8 VVT: 342 hp, 373 lb-ft of torque
Backed by a 5-year/60,000-mile transferrable powertrain limited warranty
1. Whichever comes first. See dealer for limited warranty details.