The Chevrolet Silverado 3500 HD IV, specifically the Regular Cab Long Bed configuration with the 6.6-liter V8 engine producing 401 horsepower, represents the heavy-duty work truck offering from Chevrolet, introduced with a significant facelift for the 2024 model year. This variant, built on the T1XX platform, caters to buyers requiring substantial towing and payload capacity. It occupies a position within the Silverado 3500 HD lineup as a robust, no-frills option geared towards commercial use and demanding tasks, sitting below the more luxurious trim levels like High Country. The “DRW” designation indicates a Dual Rear Wheel configuration, further enhancing its capabilities.
Technical Specifications
| Brand | Chevrolet |
| Model | Silverado 3500 HD |
| Generation | Silverado 3500 HD IV (T1XX, facelift 2024) Regular Cab Long Bed |
| Type (Engine) | 6.6 V8 (401 Hp) DRW Automatic |
| Start of production | 2024 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 2 |
| Doors | 2 |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 7.5 kg/Hp, 132.5 Hp/tonne |
| Weight-to-torque ratio | 4.8 kg/Nm, 207.9 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 | 3026 kg (6671.19 lbs) |
| Max. weight | 6350 kg (13999.35 lbs) |
| Max load | 3324 kg (7328.17 lbs) |
| Fuel tank capacity | 136 l (35.93 US gal | 29.92 UK gal) |
| Permitted trailer load with brakes (12%) | 8527 kg (18798.82 lbs) |
| Length | 5982 mm (235.51 in) |
| Width including mirrors | 2457 mm (96.73 in) |
| Height | 2038 mm (80.24 in) |
| Wheelbase | 3595 mm (141.54 in) |
| Front track | 1731 mm (68.15 in) |
| Rear (Back) track | 1905 mm (75 in) |
| Ride height (ground clearance) | 266 mm (10.47 in) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| 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 |
Introduction
The 2024 Chevrolet Silverado 3500 HD IV with the 6.6L V8 and automatic transmission is a significant update to Chevrolet’s heavy-duty truck lineup. The “IV” denotes the fourth generation of the HD series, and the 2024 facelift brought revised styling, an updated interior, and enhanced technology. This particular configuration, with its Regular Cab and Long Bed, is specifically designed for customers who prioritize functionality and work capability over luxury. The Dual Rear Wheel (DRW) setup is a key feature, dramatically increasing stability and payload capacity, making it ideal for hauling heavy trailers and equipment. It directly competes with offerings from Ford (F-350) and Ram (3500) in the North American market.
Powertrain & Engine Architecture
At the heart of this Silverado 3500 HD is the Chevrolet L8T 6.6-liter naturally aspirated V8 engine. This engine is a staple of Chevrolet’s heavy-duty truck lineup, known for its durability and straightforward design. It utilizes direct fuel injection, contributing to improved efficiency and power delivery. The engine features an overhead valve (OHV) valvetrain, a design choice prioritizing simplicity and low-end torque. The 10-speed Allison automatic transmission is paired with the engine, providing a wide gear ratio spread for optimal towing and hauling performance. This transmission is renowned for its robustness and smooth shifting characteristics. The Allison transmission is electronically controlled, adapting shift points based on load, throttle position, and driving conditions.
Driving Characteristics
The 401 horsepower and 629 lb-ft of torque delivered by the 6.6L V8, coupled with the 10-speed Allison transmission, provide substantial pulling power. While not as quick as some of the diesel-powered Silverado 3500 HD variants, this gasoline-powered version offers a responsive driving experience, particularly in the lower and mid-range RPMs. The DRW configuration significantly enhances stability when towing, reducing sway and improving overall control. The 10-speed transmission allows the engine to remain in its optimal power band during acceleration and while climbing hills. Compared to manual transmission equipped models (which are rare in this configuration), the automatic provides ease of use, especially in demanding work situations. The gear ratios are tuned for maximizing torque output, rather than achieving high-speed acceleration.
Equipment & Trim Levels
The Regular Cab Long Bed 6.6L V8 DRW Silverado 3500 HD typically comes with a relatively basic level of standard equipment, focusing on functionality. Standard features generally include air conditioning, a basic infotainment system with a touchscreen display, and vinyl upholstery. However, options were available to upgrade the interior with features like cloth or leather seating, a larger touchscreen display with navigation, and a premium audio system. Work Truck trims prioritize durability and ease of cleaning, while LT trims offer a step up in comfort and convenience. Common optional extras included trailer brake controllers, upgraded towing packages, and various bed accessories.
Chassis & Braking
The Silverado 3500 HD utilizes a fully boxed frame, providing a solid foundation for heavy-duty work. The front suspension features an independent torsion bar setup with double wishbones, offering a comfortable ride while maintaining robust load-carrying capacity. The rear suspension employs a traditional leaf spring design, optimized for handling heavy payloads. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. The ABS (Anti-lock Braking System) is standard, enhancing safety during emergency braking situations. The DRW configuration necessitates a wider track width, contributing to increased stability. Hydraulic power steering provides responsive and predictable steering feel.
Market Reception & Comparison
The 2024 Silverado 3500 HD with the 6.6L V8 and automatic transmission received generally positive reviews, particularly for its robust powertrain and impressive towing capabilities. Critics noted that while the gasoline engine doesn’t offer the same level of torque as the available Duramax diesel, it provides a more affordable entry point into the heavy-duty truck segment. Fuel economy, however, is significantly lower than the diesel option. Compared to the diesel variants, this gasoline-powered model is often favored by buyers who prioritize initial cost over long-term fuel savings. Reliability has been generally good, with the L8T engine proving to be a durable and dependable powerplant.
Legacy
The 6.6L V8 engine has been a mainstay of Chevrolet’s heavy-duty truck lineup for many years, earning a reputation for reliability and longevity. While the diesel variants often garner more attention, the gasoline-powered Silverado 3500 HD remains a popular choice for buyers who don’t require the ultimate in towing capacity. On the used car market, these trucks are often sought after for their affordability and proven track record. Proper maintenance, including regular oil changes and fluid checks, is crucial for ensuring the long-term reliability of this powertrain. The Allison transmission, in particular, is known for its durability and can withstand years of heavy use with proper care.
