2003 Chevrolet Silverado Specifications

OVERVIEW
Model: Chevrolet Silverado SS
Trim level: LT
Body style / driveline: Extended Cab / AWD
Manufacturing location: Oshawa Ontario, Canada

POWERTRAIN
Engine: Vortec High Output 6000V8
Type: 6.0-liter OHV V8 with cast-iron block
Displacement (cu in / cc): 364 / 5967
Bore x stroke (in/mm): 4 x 3.62 / 101.6 x 92
Cylinder head material: Cast aluminum
Valvetrain: Overhead valve with two valves per cylinder
Ignition system: Coil near plug, platinum-tipped spark plugs, low resistance spark plug wires
Fuel delivery: sequential central-port fuel injection
Compression ratio: 10.0:1
Horsepower (hp / kw @ rpm): 345 / 257 @ 5200
Torque (lb-ft Nm @ rpm): 380 / 516 @ 4000
Recommended fuel: 91 octane minimum, premium fuel only
Maximum engine speed: 5600
Estimated fuel economy
(mpg city / hwy / combined): 12 / 16 / 13

TRANSMISSION 4L65-E
Type: Four-speed heavy-duty
Electronic automatic
Gear ratios (:1):
First: 3.06
Second: 1.63
Third: 1.00
Fourth: 0.70
Reverse: 2.29
Final drive ratio: 4.10:1

CHASSIS / SUSPENSION
Front: Independent with computer selected torsion bars, 32mm stabilizer bar, gas-pressurized monotube shocks
Rear: Solid axle with semi-elliptic, variable-rate, two-stage multileaf springs, gas-pressurized monotube shocks
Traction Control System: All-speed traction control
Steering type: Power recirculating ball
Ratio: 14.0:1
Steering wheel turns, Lock-to-lock: 3.4

BRAKES
Type: (All) vacuum booster, power, four-wheel disc, four-wheel ABS, DRP
Rotor diameter x thickness
(mm x mm): front: 304.7 x 29; rear: 325 x 20

WHEELS / TIRES
Wheel size & type: 20 x 8.5-inch five-spoke polished aluminum
Tire size & type: P275/55R-20 Goodyear Eagle radials

DIMENSIONS
Short Box
Exterior Extended Cab
Wheelbase (in / mm): 143.5 / 3644
Overall length (in / mm): 227.6 / 5781
Overall width (in / mm):
Mirrors folded 81.5 / 2070
Mirrors extended 93.1 / 2363
Overall height (in / mm): 72.2 / 1834
Track (in / mm):
Front: 65.0 / 1651
Rear: 66.0 / 1676
Ground to top of load floor (in / mm): 30.7 / 780
Step-in height:
Front door: 21.2 / 538
Access door: 21.5 / 546
Approach angle: 28.8 degrees
Breakover angle: 20.5 degrees
Departure angle @ step bumper: 25.8 degrees
Base curb weight (lbs): 5298

Interior Front Rear
Head room (in / mm): 41.0 / 1041 38.4 / 975
Leg room (in / mm): 41.3 / 1049 33.7 / 856
Shoulder room (in / mm): 65.2 / 1656 66.3 / 1684
Hip room (in / mm): 61.4 / 1560 61.5 / 1562

Cargo Box
Cargo volume (cu ft / liters): 56.9 / 1611.2
Length at floor (in / mm): 78.7 / 1998
Width at floor (in / mm): 60.2 / 1529
Width at top (in / mm): 61.9 / 1572
Width between wheelhousing
(in / mm): 50.0 / 1270
Tailgate width (in / mm): 60.0 / 1539
Inside height (in / mm): 19.5 / 495

Capacities
GVWR (lbs / kg): 6400 / 2903
Payload (lbs / kg): 1490 / 676
Trailer towing (lbs / kg): 7500 / 3405
Fuel tank (gal / liters): 26 / 98.4
Engine oil (qts / liters): 6 / 5.6
Cooling system (qts / liters): 14.8 / 14.0