Truck Trend is the source for official specifications, payload, towing capacity, and other information that matters to real truck users. Check out the latest info for the 2010 Chevrolet Avalanche pickup available in 4X2 or 4X4 options. Read the complete specs on the Vortec 5.3L V-8 FlexFuel engine with six-speed automatic transmission.

Models: Chevrolet Avalanche LS, LT and LTZ
Body style / driveline: 4-door sport utility vehicle/pickup, front-engine, 2WD or 4WD, half-ton models
Construction: body on frame
EPA vehicle class: half-ton truck
Manufacturing locations: Silao, Mexico
Engines Vortec 5.3L V-8 FlexFuel (LMG)
Type: 5.3L V-8
Displacement (cu in / cc): 325 / 5328
Bore & stroke (in / mm): 3.78 x 3.62 / 96 x 92
Block material: cast iron
Cylinder head material: cast aluminum
Valvetrain: overhead valve, two valves per cylinder, variable valve timing, Active Fuel Management
Ignition system: coil-near-plug ignition, iridium electrode tip/ iridium core spark plugs, low resistance spark plug wires
Fuel delivery: sequential fuel injection
Compression ratio: 9.9:1
Horsepower (hp/ kW @ rpm): 310 / 231 @ 5200* (gas)
326 / 243 @ 5300* (E85)
Torque (lb-ft / Nm @ rpm): 335 / 454 @ 4400* (gas)
350 / 475 @ 4400* (E85)
Fuel: regular unleaded or E85
Max. engine speed (rpm): 6000
Emissions controls: close-coupled catalytic converter, 58X ignition, returnless fuel rail, fast-response O sensor
EPA estimated fuel economy (city / hwy): 14 / 20 (gas)
10 / 15 (E85)
Transmission Hydra-Matic 6L80, six-speed automatic
Gear ratios (:1):
First: 4.03
Second: 2.36
Third: 1.53
Fourth: 1.15
Fifth: 0.85
Sixth: 0.67
Reverse: 3.06
Final drive ratio: 3.08 (std.); 3.42 (opt.)
Chassis / Suspension
Front: independent, coil over shock; Autoride real-time damping (std. on LTZ)
Rear: five-link with coil springs; Autoride real-time damping (std. on LTZ)
Traction assist: all-speed traction control
Steering type: power-assisted rack-and-pinion
Steering ratio: 17.75:1
Steering wheel turns, lock-to-lock: 3
Turning circle, curb-to-curb (ft / m): 43.0 / 13.1
Type: four-wheel disc, four-wheel ABS
Rotor diameter x thickness (in / mm): front: 13 x 1.18 / 330.2 x 30
rear: 13.5 x .787 / 345 x 20
Wheels / Tires
Wheel size and type: 17 x 7.5-inch machined cast aluminum, silver sparkle accent (LS, LT)
18 x 8.0-inch machined aluminum (Z71 package)
20 x 8.5-inch polished aluminum (opt. LS, LT; std. LTZ)
20 x 8.5-inch chrome clad (opt. LTZ)
Tires: P265/70R17 blackwall Goodyear AL2 (all-season) steel belt radials
P265/70R17 blackwall Bridgestone OOR (on-off-road) steel belt radials (export only)
P265/65R18 blackwall Bridgestone OOR (on-off-road) steel belt radials
P265/65R18 blackwall Bridgestone AL2 (all-season) steel belt radials (export only)
P275/55R20 blackwall Bridgestone AL2 (all-season) steel belt radials