Specifications Comparison: 2020 GMC Sierra 3500 vs 2003 GMC Sierra 3500

Engine Horsepower & Torque

2020 GMC Sierra 3500

Engine Horsepower & Torque

Trim	Eng.	Drive train	HP	Torque (ft-lbs)
HD 3500 Crew Cab 159" AT4	6.6L V8	4WD	401	464
HD 3500 Crew Cab 172" AT4	6.6L V8	4WD	401	464
HD 3500 Crew Cab 159"	6.6L V8	RWD	401	464
HD 3500 Crew Cab 172"	6.6L V8	RWD	401	464
HD 3500 Double Cab 162"	6.6L V8	RWD	401	464
HD 3500 Reg Cab 142"	6.6L V8	RWD	401	464
HD 3500 Crew Cab 159"	6.6L V8	4WD	401	464
HD 3500 Crew Cab 172"	6.6L V8	4WD	401	464
HD 3500 Double Cab 162"	6.6L V8	4WD	401	464
HD 3500 Reg Cab 142"	6.6L V8	4WD	401	464
HD 3500 Crew Cab 159" Denali	6.6L V8	4WD	401	464
HD 3500 Crew Cab 172" Denali	6.6L V8	4WD	401	464
HD 3500 Crew Cab 159" SLE	6.6L V8	RWD	401	464
HD 3500 Crew Cab 172" SLE	6.6L V8	RWD	401	464
HD 3500 Double Cab 162" SLE	6.6L V8	RWD	401	464
HD 3500 Reg Cab 142" SLE	6.6L V8	RWD	401	464
HD 3500 Crew Cab 159" SLE	6.6L V8	4WD	401	464
HD 3500 Crew Cab 172" SLE	6.6L V8	4WD	401	464
HD 3500 Double Cab 162" SLE	6.6L V8	4WD	401	464
HD 3500 Reg Cab 142" SLE	6.6L V8	4WD	401	464
HD 3500 Crew Cab 159" SLT	6.6L V8	RWD	401	464
HD 3500 Crew Cab 172" SLT	6.6L V8	RWD	401	464
HD 3500 Crew Cab 159" SLT	6.6L V8	4WD	401	464
HD 3500 Crew Cab 172" SLT	6.6L V8	4WD	401	464
HD 3500 Crew Cab	6.6L V8	RWD	401	464
HD 3500 Crew Cab	6.6L V8	4WD	401	464
HD 3500 Crew Cab AT4	6.6L V8	4WD	401	464
HD 3500 Crew Cab Denali	6.6L V8	4WD	401	464
HD 3500 Crew Cab SLE	6.6L V8	RWD	401	464
HD 3500 Crew Cab SLE	6.6L V8	4WD	401	464
HD 3500 Crew Cab SLT	6.6L V8	RWD	401	464
HD 3500 Crew Cab SLT	6.6L V8	4WD	401	464
HD 3500 Extended Cab	6.6L V8	RWD	401	464
HD 3500 Extended Cab	6.6L V8	4WD	401	464
HD 3500 Extended Cab SLE	6.6L V8	RWD	401	464
HD 3500 Extended Cab SLE	6.6L V8	4WD	401	464
HD 3500 Regular Cab	6.6L V8	RWD	401	464
HD 3500 Regular Cab	6.6L V8	4WD	401	464
HD 3500 Regular Cab SLE	6.6L V8	RWD	401	464
HD 3500 Regular Cab SLE	6.6L V8	4WD	401	464

2003 GMC Sierra 3500

Engine Horsepower & Torque

Trim	Eng.	Drive train	HP	Torque (ft-lbs)
3500 Crew Cab	V8	RWD	300	360
3500 Crew Cab	V8	4WD	300	360
3500 Crew Cab SLE	V8	RWD	300	360
3500 Crew Cab SLE	V8	4WD	300	360
3500 Crew Cab SLT	V8	RWD	300	360
3500 Crew Cab SLT	V8	4WD	300	360
3500 Extended Cab	V8	RWD	300	360
3500 Extended Cab	V8	4WD	300	360
3500 Extended Cab SLE	V8	RWD	300	360
3500 Extended Cab SLE	V8	4WD	300	360
3500 Extended Cab SLT	V8	RWD	300	360
3500 Extended Cab SLT	V8	4WD	300	360
3500 Regular Cab	V8	4WD	300	360
3500 Regular Cab SLE	V8	4WD	300	360

Engine Horsepower Per Unit Of Displacement

2020 GMC Sierra 3500

Horsepower Per Liter & Inch³

Trim	Eng.	Drive train	HP Per Liter	HP Per Inch³
HD 3500 Crew Cab 159" AT4	6.6L V8	4WD	60	1.0
HD 3500 Crew Cab 172" AT4	6.6L V8	4WD	60	1.0
HD 3500 Crew Cab 159"	6.6L V8	RWD	60	1.0
HD 3500 Crew Cab 172"	6.6L V8	RWD	60	1.0
HD 3500 Double Cab 162"	6.6L V8	RWD	60	1.0
HD 3500 Reg Cab 142"	6.6L V8	RWD	60	1.0
HD 3500 Crew Cab 159"	6.6L V8	4WD	60	1.0
HD 3500 Crew Cab 172"	6.6L V8	4WD	60	1.0
HD 3500 Double Cab 162"	6.6L V8	4WD	60	1.0
HD 3500 Reg Cab 142"	6.6L V8	4WD	60	1.0
HD 3500 Crew Cab 159" Denali	6.6L V8	4WD	60	1.0
HD 3500 Crew Cab 172" Denali	6.6L V8	4WD	60	1.0
HD 3500 Crew Cab 159" SLE	6.6L V8	RWD	60	1.0
HD 3500 Crew Cab 172" SLE	6.6L V8	RWD	60	1.0
HD 3500 Double Cab 162" SLE	6.6L V8	RWD	60	1.0
HD 3500 Reg Cab 142" SLE	6.6L V8	RWD	60	1.0
HD 3500 Crew Cab 159" SLE	6.6L V8	4WD	60	1.0
HD 3500 Crew Cab 172" SLE	6.6L V8	4WD	60	1.0
HD 3500 Double Cab 162" SLE	6.6L V8	4WD	60	1.0
HD 3500 Reg Cab 142" SLE	6.6L V8	4WD	60	1.0
HD 3500 Crew Cab 159" SLT	6.6L V8	RWD	60	1.0
HD 3500 Crew Cab 172" SLT	6.6L V8	RWD	60	1.0
HD 3500 Crew Cab 159" SLT	6.6L V8	4WD	60	1.0
HD 3500 Crew Cab 172" SLT	6.6L V8	4WD	60	1.0
HD 3500 Crew Cab	6.6L V8	RWD	60	1.0
HD 3500 Crew Cab	6.6L V8	4WD	60	1.0
HD 3500 Crew Cab AT4	6.6L V8	4WD	60	1.0
HD 3500 Crew Cab Denali	6.6L V8	4WD	60	1.0
HD 3500 Crew Cab SLE	6.6L V8	RWD	60	1.0
HD 3500 Crew Cab SLE	6.6L V8	4WD	60	1.0
HD 3500 Crew Cab SLT	6.6L V8	RWD	60	1.0
HD 3500 Crew Cab SLT	6.6L V8	4WD	60	1.0
HD 3500 Extended Cab	6.6L V8	RWD	60	1.0
HD 3500 Extended Cab	6.6L V8	4WD	60	1.0
HD 3500 Extended Cab SLE	6.6L V8	RWD	60	1.0
HD 3500 Extended Cab SLE	6.6L V8	4WD	60	1.0
HD 3500 Regular Cab	6.6L V8	RWD	60	1.0
HD 3500 Regular Cab	6.6L V8	4WD	60	1.0
HD 3500 Regular Cab SLE	6.6L V8	RWD	60	1.0
HD 3500 Regular Cab SLE	6.6L V8	4WD	60	1.0