Engine
1.5L 16-Valve 4-Cylinder DOHC i-VTEC
1.6L DOHC GDI dual CVVT 16-valve I4 engine -inc: variable intake system (VIS), aluminum block & head, full-size engine cover
1.8L SOHC MPFI 16-valve i-VTEC I4 engine
2.3L 4V I4 Atkinson Cycle hybrid engine
2.4L DOHC MPFI 16-valve i-VTEC I4 engine
2.4L DOHC VVT-i 16-valve 4-cyl engine -inc: direct injection
2.5L I4 Duratec engine
3.0L DOHC SEFI 24-valve V6 Duratec engine
3.3L OHV V6 engine (REQ: NAS Emissions)
3.4L 3400 V6 SFI (175 HP [130.5 kW] @ 4800 rpm, 205 lb.-ft. [277.4 N-m] @ 4000 rpm)
3.5L 3500 V6 SFI (201 HP [150 kW] @ 5600 rpm, 221 lb.-ft. [298.4 N-m] @ 3200 rpm)
3.5L DOHC SMPI V6 engine
3.5L V6 Duratec engine
3.6L DOHC VVT V6 engine
3.6L VVT 24-valve V6 flex fuel engine
3.7L V6 engine w/standard duty cooling system
3.8L OHV V6 engine (REQ: NAS Emissions)
4.0L SMFI I6 "Power Tech" engine
4.0L SOHC 12-valve V6 engine
4.6L (281) SEFI OHC V8 "Triton" engine
5.3L (325) SFI V8 (Vortec) engine
5.3L FlexFuel EcoTec3 V8 with Active Fuel Management, Direct Injection and Variable Valve Timing includes aluminum block construction with FlexFuel capability, capable of running on unleaded or up to 85% ethanol (285 hp [212 kW] @ 5300 rpm, 305 lb-ft of torque [413 Nm] @ 3900 rpm)
5.3L V8
5.4L (330) 3V EFI V8 engine
ECOTEC Turbo 1.4L Variable Valve Timing DOHC 4-cylinder sequential MFI (138 hp [103 kW] @ 4900 rpm, 148 lb-ft of torque [199.8 N-m] @ 1850 rpm)
ECOTEC Turbo 1.4L Variable Valve Timing DOHC 4-cylinder sequential MFI, Turbo with water cooled bearings (138 hp [102.9 kW] @ 4900 rpm, 148 lb-ft of torque [199.8 N-m] @ 1850 rpm)
Engine, Vortec 6.0L Variable Valve Timing V8 SFI (360 hp [268.4 kW] @ 5400 rpm, 380 lb-ft of torque [513.0 N-m] @ 4200 rpm) with (E63) fleetside pickup box, 312 hp [232.6 kW] @ 4400 rpm, 373 lb-ft. [503.5 N-m] @ 4400 rpm with (ZW9) pickup box delete)
Vortec 5.3L V8 SFI
Vortec 5.3L V8 SFI Flex-Fuel with Active Fuel Management, capable of running on unleaded or up to 85% ethanol (320 hp [238.6 kW] @ 5200 rpm, 340 lb-ft of torque [459.0 N-m] @ 4200 rpm), iron block