Huge Year End Savings Contractor Truck 50 Off Uplift MSRP and 15 Off Chassis MSRPOPTION PACKAGESENGINE, 6.6L V8 SIDI, GMPT-V8 8 CYLINDER V IRON BLOCK, FOUR CYCLE OVERHEAD valve water cooled 6.6L SIDI V8 350 hp 261 kW @ 4500 rpm, 425 lb.-ft of torque 575.8 N-m @ 3800 rpm. Electronically controlled direct fuel injection. Six bolt main cap design for heavy-duty performance. Engine Control Module (ECM) and Transmission Control Module (TCM) engine control system. Engine cruise control, engine oil cooler, High Idle Mode (1200 rpm). (STD), TRANSMISSION, ALLISON 1000 RDS 6-SPEED AUTOMATIC, PTO NOT AVAILABLE (STD), AUDIO SYSTEM, AM/FM STEREO WITH CD PLAYER, AUXILIARY JACK, USB PORT AND Bluetooth® (STD). Horsepower calculations based on trim engine configuration. Please confirm the accuracy of the included equipment by calling us prior to purchase.