Specifications Comparison: 2004 Chevrolet Silverado 1500 vs 2021 Chevrolet Silverado 1500

Curb Weight

Trim	Engine	Drive train	Curb Weight	Horsepower	Weight / Horsepower Ratio
Extended Cab	V6	RWD	4,426 lbs.	195 hp	22.7 lbs/hp
Extended Cab	V8	4WD	4,797 lbs.	285 hp	16.8 lbs/hp
Extended Cab LS	V8	RWD	4,461 lbs.	285 hp	15.7 lbs/hp
Extended Cab LS	V8	4WD	4,832 lbs.	285 hp	17.0 lbs/hp
Extended Cab LT	V8	RWD	4,460 lbs.	295 hp	15.1 lbs/hp
Extended Cab LT	V8	4WD	4,831 lbs.	295 hp	16.4 lbs/hp
Extended Cab Z71	V8	4WD	4,831 lbs.	285 hp	17.0 lbs/hp
Regular Cab	V6	RWD	4,023 lbs.	195 hp	20.6 lbs/hp
Regular Cab	V6	4WD	4,307 lbs.	195 hp	22.1 lbs/hp
Regular Cab LS	V8	RWD	4,047 lbs.	285 hp	14.2 lbs/hp
Regular Cab LS	V8	4WD	4,331 lbs.	285 hp	15.2 lbs/hp
Regular Cab Z71	V8	4WD	4,331 lbs.	285 hp	15.2 lbs/hp
Crew Cab LS	V8	RWD	4,819 lbs.	295 hp	16.3 lbs/hp
Crew Cab LS	V8	4WD	5,117 lbs.	295 hp	17.3 lbs/hp
Crew Cab LT	V8	RWD	4,819 lbs.	295 hp	16.3 lbs/hp
Crew Cab LT	V8	4WD	5,117 lbs.	295 hp	17.3 lbs/hp
Crew Cab Z71	V8	4WD	5,117 lbs.	295 hp	17.3 lbs/hp

Trim	Engine	Drive train	Curb Weight	Horsepower	Weight / Horsepower Ratio
Crew Cab Custom	2.7L	RWD	4,602 lbs.	310 hp	14.8 lbs/hp
Crew Cab Custom	2.7L	4WD	4,815 lbs.	310 hp	15.5 lbs/hp
Crew Cab Custom Trail Boss	4.3L V6	4WD	4,867 lbs.	285 hp	17.1 lbs/hp
Crew Cab High Country	5.3L V8	RWD	4,602 lbs.	355 hp	13.0 lbs/hp
Crew Cab High Country	5.3L V8	4WD	4,867 lbs.	355 hp	13.7 lbs/hp
Crew Cab LT	2.7L	RWD	4,602 lbs.	310 hp	14.8 lbs/hp
Crew Cab LT	2.7L	4WD	4,815 lbs.	310 hp	15.5 lbs/hp
Crew Cab LT Fleet	2.7L	4WD	4,815 lbs.	310 hp	15.5 lbs/hp
Crew Cab LT Trail Boss	5.3L V8	4WD	4,867 lbs.	355 hp	13.7 lbs/hp
Crew Cab LTZ	5.3L V8	RWD	4,602 lbs.	355 hp	13.0 lbs/hp
Crew Cab LTZ	5.3L V8	4WD	4,867 lbs.	355 hp	13.7 lbs/hp
Crew Cab RST	2.7L	RWD	4,602 lbs.	310 hp	14.8 lbs/hp
Crew Cab RST	2.7L	4WD	4,815 lbs.	310 hp	15.5 lbs/hp
Crew Cab Work	4.3L V6	RWD	4,602 lbs.	285 hp	16.1 lbs/hp
Crew Cab Work	4.3L V6	4WD	4,815 lbs.	285 hp	16.9 lbs/hp
Extended Cab Custom	2.7L	RWD	4,599 lbs.	310 hp	14.8 lbs/hp
Extended Cab Custom	2.7L	4WD	4,815 lbs.	310 hp	15.5 lbs/hp
Extended Cab Custom Trail Boss	4.3L V6	4WD	4,815 lbs.	285 hp	16.9 lbs/hp
Extended Cab LT	2.7L	RWD	4,599 lbs.	310 hp	14.8 lbs/hp
Extended Cab LT	2.7L	4WD	4,815 lbs.	310 hp	15.5 lbs/hp
Extended Cab LT Fleet	2.7L	4WD	4,815 lbs.	310 hp	15.5 lbs/hp
Extended Cab RST	2.7L	4WD	4,815 lbs.	310 hp	15.5 lbs/hp
Extended Cab Work	4.3L V6	RWD	4,599 lbs.	285 hp	16.1 lbs/hp
Extended Cab Work	4.3L V6	4WD	4,815 lbs.	285 hp	16.9 lbs/hp
Regular Cab Work	4.3L V6	RWD	4,369 lbs.	285 hp	15.3 lbs/hp
Regular Cab Work	4.3L V6	4WD	4,582 lbs.	285 hp	16.1 lbs/hp