ENGINE 5.3L ECOTEC3 V8 (355 hp [265 kW] @ 5600 rpm 383 lb-ft of torque [518 Nm] @ 4100 rpm); featuring available Dynamic Fuel Management that enables the engine to operate in 17 different patterns between 2 and 8 cylinders depending on demand to optimize power delivery and efficiency (NOTE: Certain 21MY vehicles will include (YK9) Not Equipped with Dynamic Fuel Management.)