2013 GMC Sierra 1500 IV (GMTK2XX) Crew Cab  Standard Box 5.3 EcoTec3 V8 (355/380 Hp) 4WD Automatic FlexFuel
4.6 kg/Nm, 216.3 Nm/tonne
6.8 kg/Hp, 147.9 Hp/tonne
5.3 EcoTec3 V8 (355/380 Hp) 4WD Automatic FlexFuel