Dimensions and capacities are in inches unless otherwise
specified.
| Powertrain
/ Chassis |
Vortec
5300 5.3L V-8 (LM7) |
Vortec
8100 8.1L V-8 (L18) |
| Application |
std on 1500 |
std on 2500 |
| Type |
5.3L V-8 |
8.1L V-8 |
| Displacement (cu in / cc) |
325 / 5328 |
496 / 8128 |
| Bore & stroke (in / mm) |
3.78 x 3.62 / 96 x 92 |
4.25 x 4.37 / 108 x 111 |
| Block material |
cast iron |
cast iron |
| Cylinder head material |
cast aluminum |
cast iron |
| Valvetrain |
overhead valves, hydraulic
roller follower, 2 valves per cylinder, chain cam drive |
hydraulic roller follower,
2 valves per cylinder, chain cam drive |
| Fuel delivery |
sequential fuel injection |
sequential fuel injection |
| Compression ratio |
9.5:1 |
9.1:1 |
| Horsepower (hp / kw @ rpm) |
295 / 220 @ 5200 |
320 / 238 @ 4200 |
| Torque (lb-ft / Nm @ rpm) |
330 / 447 @ 4000 |
445 / 603 @ 3200 |
| Recommended fuel |
87 octane |
87 octane |
| Maximum engine speed (rpm) |
5900 |
5000 |
| Emissions controls |
3-way catalytic converter,
positive crankcase ventilation, evaporative collection
system |
exhaust gas recirculation,
air injection reaction (available) |
Estimated fuel economy
(mpg city / hwy / combined) |
2WD: 14 / 18 / 16 |
N/A |
| 4WD: 13 / 17 / 15 |
| MPIG (city / hwy / combined) |
2WD: 17 / 25 / 20
4WD: 17 / 22 / 19 |
N/A |
Flexible
Fuel-Gasoline:
2WD: 17 / 25 / 20
4WD: 16 / 21 / 18 |
Flexible
Fuel-Ethanol:
2WD: 13 / 19 / 15
4WD: 12 / 16 / 13 |
| L/100km (city / hwy / combined) |
2WD: 16.4 / 11.5 / 14.2
4WD: 17.0 / 13.1 / 15.2 |
N/A |
Flexible Fuel-Gasoline:
2WD: 16.3 / 11.3 / 14.1
4WD: 17.9 / 13.3 / 15.8 |
Flexible Fuel-Ethanol:
2WD: 21.8 / 15.0 / 18.7
4WD: 24.0 / 17.9 / 21.2 |
| Chassis
/ Suspension |
1500 |
2500 |
| Front |
independent with torsion
bars |
independent with torsion
bars |
Rear
|
multi-link
with coil springs |
2-stage
multi-leaf springs |
| Traction assist |
part of Z66
package on 2WD models |
| Steering type |
power
recirculating ball |
power
recirculating ball |
| Steering ratio |
14.0:1; 15.8:1 overall |
13 – 15:1; 16.2:1
overall |
| Steering wheel turns,
lock-to-lock |
3.2 |
3.2 |
| Turning circle, curb-to-curb (ft / m) |
43.3 / 13.2 |
44.1 / 13.4 |
| Capacities |
1500 |
2500 |
EPA passenger volume
(cu ft / L) |
120.2
/ 3404 |
120.2
/ 3404 |
| Interior cargo volume (cu ft / L) |
53.9 / 1526 with Midgate
up, 2nd row seat folded |
53.9 / 1526 with Midgate
up, 2nd row seat folded |
| GVWR, standard (lb / kg) |
2WD: 6800
/ 3091 |
8600
/ 3901 |
| 4WD: 7000
/ 3182 |
| Payload (lb / kg) |
base 2WD: 1313 / 595 |
max 2WD: 2247 / 1018 |
| base 4WD: 1266 / 574 |
max 4WD: 1807 / 820 |
Trailer towing maximum
(lb / kg) |
2WD: 8200 / 3720 w/ trailer
brakes |
2WD: 12000 / 5443 w/ trailer
brakes |
| 4WD: 7900 / 3583 w/ trailer
brakes |
4WD: 11900 / 5398 w/ trailer
brakes |
| Fuel tank (gal/ L) |
31 / 117 |
37.5 /
142 |
| Engine oil (qt / L) |
5.75 / 5.44 |
5.75 / 5.44 |
| Cooling system: (qt /
L) |
16.8 /
15.9 |
29 / 27.4 |
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