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2003 Chevrolet Silverado HD - Specs

 Links
2002 Chevy  Silverado HD

2003 Chevy Silverado 1500 - Review
2003 Chevy Silverado HD - Review
2003 Chevy Silverado 2500 - Review
2003 Chevy Silverado 2500 HD- Review
2003 Chevy Silverado 3500 - Review
2003 Chevy Silverado - Photos
2003 Chevy Silverado - Specs
2003 Chevrolet Reviews
2003 Chevrolet Silverado - Price Quote

Visit Chevrolet for more information on the Chevrolet Silverado.

Silverado HD - Engine Specs
Silverado HD - Transmission Specs

Silverado HD - Chassis / Suspension
Silverado HD - Exterior Dimensions

Silverado HD - Interior Dimensions
Silverado HD - Capacities


Model Lineup
Engines
Transmissions
Vortec 6000 6.0L V8
Vortec 8100 8.1L V8
Duramax 6600 6.6L V8
5-spd man (MW3)
6-spd man (ML6)
4-spd auto (Hydra-Matic 4L80-E)
5-spd auto (M74)
Pickups
C/K25903 HD, C/K35903 2WD/4WD Regular Cab, Wideside Long Box
Standard
Optional
Optional
Standard
Optional
Optional
Optional
C/K25753 HD 2WD/4WD Extended Cab, Wideside Short Box
Standard
Optional
Optional
Standard
Optional
Optional
Optional
C/K25953 HD, C/K35953 2WD/4WD Extended Cab, Wideside Long Box
Standard
Optional
Optional
Standard
Optional
Optional
Optional
C/K25743 HD 2WD/4WD Crew Cab, Wideside Short Box
Standard
Optional
Optional
Standard
Optional
Optional
Optional
C/K25943, C/K35943 2WD/4WD Crew Cab, Wideside Long Box
Standard
Optional
Optional
Standard
Optional
Optional
Optional
Chassis Cabs
C/K36003,C/K36403, 2WD/4WD Regular Cab
Standard
Optional
Optional
Standard
Optional
Optional
Optional
C/K36053,C/K36453, 2WD/4WD Extended Cab
Standard
Optional
Optional
Standard
Optional
Optional
Optional

Engine Vortec 6000
6.0L V8 (LQ4)
Vortec 8100
8.1L V8 (L18)
Duramax 6600
6.6L V8 (LB7)
Type 6.0-liter V8 8.1-liter V8 6.6-liter V8
Displacement (cu in / cc) 364 / 5967 496 / 8128 403 / 6599
Bore & stroke (in / mm) 4 x 3.62 /
101.6 x 92
4.25 x 4.37 /
107.95 x 111
4.06 x 3.90 /
103 x 99
Block material cast iron cast iron cast iron
Cylinder head material cast aluminum cast iron cast aluminum
Valvetrain OHV OHV OHV
Ignition system coil near plug, platinum- tipped spark plugs, low-resistance spark plug wires coil near plug, platinum- tipped spark plugs, low-resistance spark plug wires compression, glow plug start aid; platinum-tipped spark plugs, low-resistance spark plug wires
Fuel delivery sequential fuel injection sequential fuel injection direct injection diesel with high pressure common rail
Compression ratio 9.4:1 9.1:1 17.5:1
Horsepower
(hp / kw @ rpm)
300 / 224 @ 4400 340 / 254 @ 4200 (L18) 300 / 224 @ 3100
325 / 242 @ 4000
(MD L18 with LRW option)
295 / 220 @ 3600
(MD L18 with LRZ option)
225 / 168 @ 3600
(MD L18 with LQR option)
Torque (lb-ft / Nm @rpm) 360 / 488 @ 4000 455 / 617 @ 3200 (L18) 520 / 705 @ 1800
450 / 610 @ 2800
(MD L18 with LRW option)
440 / 597 @ 3200
(MD L18 with LRZ option)
350 / 475 @ 1200
(MD L18 with LQR option)
Recommended fuel
87 octane
87 octane
Diesel
Maximum engine speed (rpm)
manual: 5600
manual: 5000
3250
auto: 5600
auto: 4000
Emissions controls
three-way catalytic converter, exhaust gas recirculation, positive crankcase ventilation, evaporative collection system
three-way catalytic converter, exhaust gas recirculation, positive crankcase ventilation, evaporative collection system
turbocharged, intercooled, catalytic converter system

Transmissions
Hydra-Matic 4L80-E
NVG 4500 (MW3)
ZF S6-650 (ML6)
Allison 1000 (M74)
Type
4-speed automatic
5-speed manual
6-speed manual
5-speed automatic
Gear Ratios (:1)
   First
2.48
5.61
5.79
3.10
   Second
1.48
3.04
3.31
1.81
   Third
1.00
2.10
2.10
1.41
   Fourth
0.75
1.31
1.31
1.00
   Fifth
-
0.72
1.00
0.71
   Sixth
-
-
0.72
-
Reverse
2.08
5.04
5.23
4.49
Final drive ratio
(with all transmissions)
Vortec 6000: 4.10 standard all models
Vortec 8100: (optional) 3.73 or 4.10 on 2500HD; 4.10 standard on 3500 Series
Duramax 6600: 3.73 ratio standard all models

Chassis / Suspension Chevy Silverado HD
Front
(all models) standard long- and short-arm independent
front torsion-bar suspension
Rear
2500HD Pickups: semi-elliptic two-stage multileaf spring
3500 Chassis Cabs: three-stage multi-leaf spring
Steering type 24: 1
Steering wheel turns,
lock-to-lock
3.14
Turning circle,
curb-to-curb (ft / m)
Regular Extended Crew
2500HD series single-wheel pickups 2WD: 43.8 / 13.4 2WD: 46.8 / 14.3 2WD: 49.6 / 15.1
4WD: 43.8 / 13.4 4WD: 50.8 / 15.5 4WD: 49.6 / 15.1
3500 series dual-wheel pickups 2WD: 43.7 / 13.3 2WD: 50.7 / 15.5 2WD: 53.5 / 16.3
4WD: 43.7 / 13.3 4WD: 50.7 / 15.5 4WD: 53.5 / 16.3

Brakes Chevy Silverado HD
Type power, Hydro-boost brake-apply system, four-wheel disc, four-wheel ABS
Rotor diameter x thickness (in / mm)
Front 12.80 x 1.50 / 325 x 38
Rear 12.80 x 1.20 / 325 x 30
Total swept area
(sq in / sq cm)
front: 245.5 x 1583.8
rear: 235.1 / 1516.6

Wheels and Tires Chevy Silverado HD
Wheels 8-bolt 16 x 6.5-inch steel wheels standard; optional on 2500HD models: chrome center cap, chrome steel wheels with chrome center cap and polished forged aluminum wheels
Chassis Cab wheels redesigned to display more surface area and provide increased corrosion resistance (than previous designs)
Tires 2500HD models: standard LT245/75R16E radials,with either all-season or on-/off-road design, depending on the model
3500-Series: standard LT215/85R16-E highway or on-/off-road tires; tire size and inflation pressure geared to specific load ratings

Exterior Dimensions
2500HD / 3500 Regular Cab Long Box
2500HD Extended Cab Short Box
2500HD / 3500 Extended Cab Long Box
2500HD Crew Cab Short Box
Wheelbase (in / mm)
133 / 3378
143.5 / 3645
157.5 / 4001
153 / 3886
Overall length (in / mm)
2WD
222.1 / 5641
227.7 / 5784
246.6 / 6264
237.3 / 6027
4WD
222.1 / 5748
-
246.6 / 6264
237.3 / 6027
Overall width (in / mm)
2WD
79.7 / 2024
79.7 / 2024
79.7 / 2024
79.7 / 2024
4WD
96.1 / 2441
96.1 / 2441
79.7 / 2024
Overall height: (in / mm)
2WD: 2500 HD
76.2 / 1935
76.2 / 1935
76.2 / 1935
77 / 1956
2WD: 3500
76.7 / 1948
-
76.3 / 1938
-
4WD: 2500 HD
76.5 / 1943
76.5 / 1943
76.5 / 1943
77.4 / 1966
4WD: 3500
76.7 / 1948
-
-
-
Track (in / mm)
Front:
68.6 / 1742
Rear:
2500HD: 66 / 1676
3500: 74.7 / 1897
Min. ground clearance (in / mm)
2WD 2500 HD
7.5 / 190
7.4 / 188
7.4 / 188
7.4 / 188
2WD 3500
7.6 / 193
7.5 / 190
4WD 2500 HD
7.5 / 190.5
7.4 / 188
7.4 / 188
7.4 / 188
4WD 3500
7.6 / 193
7.5 / 190.5
Step-in height (in / mm)
2WD 2500 HD
24.9 / 632.5
24.4 / 619.8
24.4 / 619.8
24.6 / 624.8
2WD 3500
25.4 / 645.2
-
24.9 / 632.5
-
4WD 2500 HD
25.4 / 645.2
24.6 / 624.8
24.6 / 624.8
25.1 / 637.5
4WD 3500
-
-
24.9 / 632.5
-
Wheelbase (in / mm)
2WD
167 / 4242
167 / 4242
137.0 / 3480
161.5 / 4102
4WD
167 / 4242
167 / 4242
161.5 / 4102
185.5 / 4712
Overall length (in / mm)
2WD
256.2 / 6507
246.7 / 6266
225.0 / 5715
249.5 / 6637
4WD
256.2 / 6507
246.7 / 6266
249.5 / 6637
273.5 / 6947
Overall width (in / mm)
2WD
79.7 / 2024
79.7 / 2024
94 / 2388
94 / 2388
4WD
79.7 / 2024
94 / 2388
94 / 2388
94 / 2388
Overall height (in / mm)
2WD 2500 HD
77 / 1956
77 / 1956
76 / 1930
76 / 1930
2WD 3500
77.3 / 1963
77.3 / 1963
4WD 2500 HD
77 / 1956
77 / 1956
76 / 1930
76 / 1930
4WD 3500
77.3 / 1963
77.3 / 1963

GVW (lbs / kg)
Curb Weight (lbs / kg)
Payload (lbs / kg)
Weight Distribution (% front / rear)
2WD pickups / Chassis Cabs:
C35403 Reg.Cab Chassis Cab
11400 / 5171
5612 / 2545.1
5788 / 2624.9
55 / 45
C35453 Ext. Cab Chassis Cab
11400 / 5171
6057 / 2746.9
5343 / 2423.1
55 / 45
4WD pickups / Chassis Cabs:
K25753 Ext. Cab Short Box
8600 / 3900.2
5524 / 2505.2
3076 / 1395.0
59 / 41
K25903HD Reg. Cab Long Box
9200 / 4173
5440 / 2467.1
3760 / 1705.2
57 / 43
K25753HD Ext. Cab Short Box
9200 / 4173
5631 / 2553.7
3569 / 1618.6
58 / 42
K25743HD Crew Cab Short Box
9200 / 4173
5892 / 2672.1
3308 / 1500.2
57 / 43
K25943HD Crew Cab Long Box
9200 / 4173
6056 / 2746.5
3144 / 1425.9
57 / 43
K25953HD Ext. Cab Long Box
9200 / 4173
5828 / 2643.1
3372 / 1529.3
58 / 42
K35903 Reg. Cab Long Box
11400 / 5171
5841 / 2649.0
5559 / 2521.1
54 / 46
K35943 Crew Cab Long Box
11400 / 5171
6459 / 2929.3
4941 / 2240.8
54 / 46
K35953 Ext. Cab Long Box
11400 / 5171
6231 / 2825.9
5169 / 2344.2
54 / 46
K35003 Reg. Cab Chassis Cab
12000 / 5443
5800 / 2630.4
6200 / 2811.8
55 / 45
K35053 Ext. Cab Chassis Cab
12000 / 5443
6262 / 2839.9
5738 / 2602.3
55 / 45
K35403 Reg. Cab Chassis Cab
12000 / 5443
5906 / 2678.5
6094 / 2763.7
57 / 43
K35453 Ext. Cab Chassis Cab
12000 / 5443
6341 / 2875.7
5659 / 2566.4
56 / 44

Cargo Box
Long Box
Short Box
Cargo volume (cu ft / liter)
70.7 / 2002
56.9 / 1611
Length at floor (in / mm)
97.6 / 2479
78.7 / 1999
Width at floor (in / mm)
60.2 / 1529
60.2 / 1529
Opening width rear at top (in / mm)
61.9 / 1572
61.9 / 1572
Width between wheelhousings (in / mm)
50.0 / 1270
50.0 / 1270
Inside height (in / mm)
19.5 / 495
19.5 / 495

Interior Dimensions Regular Cab Extended Cab Crew Cab
Head room (in / mm)
Front 41 / 1041 41 / 1041 41 / 1041
Rear - 38.4 / 975 39 / 990
Leg room (in / mm)
Front 41.3 / 1049 41.3 / 1049 41.3 / 1049
Rear - 33.7 / 856 39.1 / 993
Shoulder room (in / mm)
Front 65.2 / 1656 65.2 / 1656 65.2 / 1656
Rear - 66.3 / 1684 65.1 / 1653
Hip room (in / mm)
Front 61.4 / 1560 61.4 / 1560 61.4 / 1560
Rear   61.5 / 15621 62.9 / 1598
Seating 3 6 6

Trailer towing maximum (lbs / kg)
2500HD alt fuel w/6.0L V8,
auto transmission
8200 / 3,718.8 with weight-distributing hitch and sway bar; alt-fuel vehicles are neither designed nor intended to tow 5th-wheel or gooseneck trailers
2500HD w/6.0L V8, manual or auto transmission 10,600 / 4.807.3 with weight-distributing hitch and sway control or with
5th-wheel or gooseneck trailer
2500HD w/8.1L V8 or Duramax 6.6L V8 turbo diesel, manual or auto transmission 12,000 / 5,442 with weight-distributing hitch and sway control. Increases to 16,100 lbs for 8.1L and 16,000 lbs for Duramax with 5th wheel or gooseneck trailer
3500 w/6.0L V8, manual or auto transmission 9,900 / 4,489.8 with weight-distributing hitch and sway control or 5th-wheel or gooseneck trailers
3500 w/8.1L V8 or Duramax 6.6L Turbo Diesel, manual or auto transmission 12,000 / 5,442.2 with weight-distributing hitch and sway control; increases
to 15,500 lbs for 8.1L and 15,400 lbs for Duramax with 5th-wheel or
gooseneck trailers.

Capacities Regular Cab Extended Cab Crew Cab
Engine oil with filter
(qts / liters)
6.0 / 5.7 6.0 / 5.7 9.3 / 9.8
Total cooling system (qts / liters)
Manual Transmission 15.2 / 14.4 23.6 / 22.3 21.8 / 20.7
Automatic Transmission 14.4 / 13.6 23.1 / 21.9 21.4 / 20.3

Used Price Quote on a 2003 Chevrolet Silverado HD