The Chevrolet Silverado 3500 HD IV, specifically the Crew Cab Long Bed configuration with the 6.6-liter V8 engine producing 401 horsepower, represents the fourth generation of Chevrolet’s heavy-duty pickup truck line. Introduced with the 2024 model year as a facelift to the T1XX platform, this variant caters to buyers requiring substantial towing and payload capacity without sacrificing interior space and comfort. Positioned as a mid-to-high range offering within the Silverado 3500 HD lineup, it bridges the gap between work-focused base models and the fully-equipped luxury trims. This particular configuration, paired with the Allison automatic transmission and four-wheel drive (DRW – Dual Rear Wheels), is designed for demanding tasks and provides a robust solution for commercial and personal use.
Technical Specifications
| Brand | Chevrolet |
| Model | Silverado 3500 HD |
| Generation | Silverado 3500 HD IV (T1XX, facelift 2024) Crew Cab Long Bed |
| Type (Engine) | 6.6 V8 (401 Hp) 4WD DRW Automatic |
| Start of production | 2024 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 5 |
| Doors | 4 |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 8.3 kg/Hp, 120.2 Hp/tonne |
| Weight-to-torque ratio | 5.3 kg/Nm, 188.6 Nm/tonne |
| Power | 401 Hp @ 5200 rpm |
| Torque | 629 Nm @ 4000 rpm, 463.93 lb.-ft. @ 4000 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | L8T |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 103.25 mm (4.06 in) |
| Piston Stroke | 98 mm (3.86 in) |
| Compression ratio | 10.8:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHV |
| Engine oil capacity | 7.6 l (8.03 US qt | 6.69 UK qt) |
| Coolant | 14.6 l (15.43 US qt | 12.85 UK qt) |
| Kerb Weight | 3335 kg (7352.42 lbs) |
| Max. weight | 6350 kg (13999.35 lbs) |
| Max load | 3015 kg (6646.94 lbs) |
| Fuel tank capacity | 136 l (35.93 US gal | 29.92 UK gal) |
| Permitted trailer load with brakes (12%) | 8074 kg (17800.12 lbs) |
| Length | 6759 mm (266.1 in) |
| Width including mirrors | 2457 mm (96.73 in) |
| Height | 2049 mm (80.67 in) |
| Wheelbase | 4369 mm (172.01 in) |
| Front track | 1731 mm (68.15 in) |
| Rear (Back) track | 1905 mm (75 in) |
| Ride height (ground clearance) | 264 mm (10.39 in) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 10 gears, automatic transmission Allison |
| Front suspension | Independent torsion bar, double wishbone |
| Rear suspension | Rigid axle suspension, Leaf spring |
| Front brakes | Ventilated discs, 355×40 mm |
| Rear brakes | Ventilated discs, 355×40 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Power steering | Hydraulic Steering |
| Tires size | 235/80 R17; 235/80 R18 |
| Wheel rims size | 6.5J x 17; 8J x 18 |
Introduction
The 2024 Chevrolet Silverado 3500 HD IV Crew Cab Long Bed 6.6 V8 (401 Hp) 4WD DRW Automatic is a heavy-duty pickup truck designed for demanding applications. As part of the fourth-generation Silverado HD series (T1XX platform), this model benefits from a mid-cycle refresh introducing updated styling, enhanced technology, and improved interior appointments. The Crew Cab configuration provides ample passenger space, while the Long Bed offers a substantial cargo area. This specific variant, equipped with the 6.6-liter gasoline V8 and the robust Allison 10-speed automatic transmission, is geared towards customers who prioritize power, towing capacity, and all-weather capability. The Dual Rear Wheel (DRW) setup further enhances stability and payload capacity, making it a popular choice for commercial users and those frequently hauling heavy loads.
Powertrain & Engine Architecture
At the heart of this Silverado 3500 HD lies the Chevrolet L8T 6.6-liter naturally aspirated V8 engine. This engine utilizes direct fuel injection, a proven technology for maximizing power and efficiency. The engine features an Overhead Valve (OHV) valvetrain, known for its simplicity and durability. The L8T produces 401 horsepower at 5200 rpm and 629 lb-ft of torque at 4000 rpm. The engine’s robust construction and large displacement contribute to its ability to handle heavy loads and sustained towing. Paired with the engine is the Allison 10-speed automatic transmission, a heavy-duty unit specifically designed for the Silverado and Sierra HD trucks. This transmission offers smooth and precise shifting, optimizing power delivery and fuel economy. The 10-speed configuration provides a wide range of gear ratios, allowing the engine to operate in its optimal power band more frequently.
Driving Characteristics
The Silverado 3500 HD 6.6L V8 with the Allison 10-speed automatic delivers a driving experience focused on capability and control. While not as quick as lighter-duty pickups, the engine provides ample power for accelerating with a load or tackling steep grades. The Allison transmission’s intelligent shift programming ensures smooth transitions between gears, minimizing driveline shock. Compared to the available Duramax diesel engine, the gasoline V8 offers a more responsive feel at lower engine speeds, but lacks the diesel’s exceptional low-end torque. The DRW configuration significantly improves stability when towing, reducing sway and enhancing braking performance. The ride quality, while firm due to the heavy-duty suspension, is surprisingly comfortable for a truck of this size. The 4WD system provides excellent traction in various conditions, making it suitable for both on-road and off-road use.
Equipment & Trim Levels
The Crew Cab Long Bed configuration of the Silverado 3500 HD typically includes a generous array of standard features. These commonly include air conditioning, power windows and locks, a touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, and a rearview camera. The interior typically features durable cloth upholstery, though leather options are available on higher trims. Optional extras for this variant can include a premium audio system, heated and ventilated front seats, a power-adjustable steering column, and advanced safety features such as lane departure warning and automatic emergency braking. The specific trim level (e.g., LT, LTZ, High Country) dictates the level of standard equipment and available options.
Chassis & Braking
The Silverado 3500 HD utilizes a fully boxed frame for exceptional strength and rigidity. The front suspension features an independent torsion bar setup with double wishbone components, providing a comfortable ride and precise handling. The rear suspension employs a traditional leaf spring design, optimized for heavy-duty load carrying. Braking duties are handled by ventilated disc brakes on all four wheels, measuring 355×40 mm. An Anti-lock Braking System (ABS) is standard, enhancing safety and control during emergency braking situations. The steering system utilizes a cone worm with recirculation balls, providing a responsive and predictable steering feel. Hydraulic power steering assists the driver, reducing steering effort.
Market Reception & Comparison
The 2024 Silverado 3500 HD has been generally well-received by automotive critics, praised for its powerful engine, capable towing capacity, and comfortable interior. Compared to its primary rivals, the Ford Super Duty and Ram Heavy Duty, the Silverado 3500 HD offers a competitive combination of features and performance. The gasoline V8 engine provides a lower initial cost compared to the diesel options offered by competitors, but typically results in lower fuel economy. Reliability reports suggest that the L8T engine and Allison transmission are generally durable and dependable, though regular maintenance is crucial for long-term performance.
Legacy
The L8T 6.6-liter V8 and Allison 10-speed automatic transmission represent a proven powertrain combination for heavy-duty truck applications. While the diesel engine remains the preferred choice for many heavy-duty truck buyers, the gasoline V8 offers a viable alternative for those who prioritize initial cost and responsiveness. The Silverado 3500 HD IV, with this powertrain, is expected to maintain a strong presence in the used car market, offering a capable and reliable option for buyers seeking a heavy-duty pickup truck. Proper maintenance and adherence to recommended service intervals will be key to ensuring the longevity of this powertrain.
