The Chevrolet Silverado 3500 HD IV, specifically the 2024 model year facelift featuring a Regular Cab Long Bed configuration with the 6.6L Duramax Turbo-Diesel V8 engine producing 470 horsepower and paired with a 10-speed automatic transmission and four-wheel drive, represents Chevrolet’s heavy-duty truck offering aimed at demanding work and towing applications. Introduced as part of the T1XX platform’s fourth generation, this variant caters to buyers needing substantial capability without the added size or complexity of crew cab models. Production began in 2024, building upon the established Silverado HD lineage known for its robust construction and powerful engines.
Technical Specifications
| Brand | Chevrolet |
| Model | Silverado 3500 HD |
| Generation | Silverado 3500 HD IV (T1XX, facelift 2024) Regular Cab Long Bed |
| Type (Engine) | 6.6 Duramax TD V8 (470 Hp) 4WD SRW Automatic |
| Start of production | 2024 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 2 |
| Doors | 2 |
| Fuel Type | Diesel |
| Weight-to-power ratio | 7.1 kg/Hp, 141.6 Hp/tonne |
| Weight-to-torque ratio | 2.5 kg/Nm, 398.3 Nm/tonne |
| Power | 470 Hp @ 2800 rpm |
| Power per litre | 71.2 Hp/l |
| Torque | 1322 Nm @ 1600 rpm (975.06 lb.-ft. @ 1600 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | L5P |
| Engine displacement | 6604 cm3 (403 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 103 mm (4.06 in.) |
| Piston Stroke | 99 mm (3.9 in.) |
| Compression ratio | 16:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | OHV |
| Engine oil capacity | 9.5 l (10.04 US qt | 8.36 UK qt) |
| Coolant | 28.5 l (30.12 US qt | 25.08 UK qt) |
| Kerb Weight | 3319 kg (7317.14 lbs.) |
| Max. weight | 5352 kg (11799.14 lbs.) |
| Max load | 2033 kg (4482 lbs.) |
| Fuel tank capacity | 106 l (28 US gal | 23.32 UK gal) |
| Permitted trailer load with brakes (12%) | 6577 kg (14499.8 lbs.) |
| Length | 5982 mm (235.51 in.) |
| Width including mirrors | 2076 mm (81.73 in.) |
| Height | 2056 mm (80.94 in.) |
| Wheelbase | 3595 mm (141.54 in.) |
| Front track | 1731 mm (68.15 in.) |
| Rear (Back) track | 1736 mm (68.35 in.) |
| Ride height (ground clearance) | 285 mm (11.22 in.) |
| Drivetrain Architecture | All wheel drive (4×4). ICE drives rear wheels, front engaged via clutch. |
| 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, 360×34 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Power steering | Hydraulic Steering |
| Tires size | 275/70 R18; 275/65 R20 |
| Wheel rims size | 8J x 18; 8.5J x 20 |
Introduction
The 2024 Chevrolet Silverado 3500 HD Regular Cab Long Bed with the 6.6L Duramax diesel represents a work-focused configuration within the fourth generation (T1XX platform) of Chevrolet’s heavy-duty truck line. This model is positioned as a robust solution for commercial users, farmers, and individuals requiring significant towing and payload capacity. The Regular Cab configuration, combined with the long bed, prioritizes practicality and cargo space over passenger comfort, making it ideal for applications where hauling is paramount. The facelift introduced in 2024 brought updated styling and technology to the Silverado HD range, enhancing its appeal and competitiveness in the heavy-duty truck segment.
Powertrain & Engine Architecture
At the heart of this Silverado 3500 HD lies the 6.6-liter L5P Duramax turbocharged diesel engine. This engine is a pushrod (OHV) V8, known for its durability and substantial torque output. The L5P utilizes a common-rail direct fuel injection system, delivering fuel at extremely high pressures for optimized combustion. A variable geometry turbocharger (VGT) and intercooler work in tandem to maximize power and efficiency. The engine produces 470 horsepower at 2800 rpm and a massive 1322 Nm (975.06 lb-ft) of torque at 1600 rpm. This torque figure is crucial for heavy towing and hauling. The engine features a 16:1 compression ratio. Paired with the engine is the Allison 10-speed automatic transmission, a heavy-duty unit designed to handle the engine’s substantial output. This transmission offers smooth shifting and optimized gear ratios for both towing and everyday driving.
Driving Characteristics
The Silverado 3500 HD 6.6L Duramax with the 10-speed automatic delivers a driving experience focused on capability rather than outright speed. While 470 horsepower is respectable, the engine’s strength lies in its low-end torque. This allows for effortless towing of heavy loads and confident acceleration even with a substantial payload. The 10-speed automatic transmission helps keep the engine in its optimal power band, providing smooth and efficient power delivery. Compared to gasoline-powered Silverado 3500 HD models, the Duramax diesel offers significantly more torque, making it the preferred choice for demanding tasks. Compared to higher trim levels with more luxurious interiors, this Regular Cab model offers a more utilitarian ride, prioritizing function over comfort. The gear ratios are tuned for towing, meaning that while highway cruising is comfortable, the truck isn’t designed for sporty acceleration.
Equipment & Trim Levels
The Regular Cab Long Bed 3500 HD typically comes with a more basic level of standard equipment compared to higher trim levels like the High Country or LTZ. Standard features generally include air conditioning, a basic infotainment system with a touchscreen display, and vinyl upholstery. However, even base models benefit from the 2024 facelift’s updated interior design. Optional extras could include upgraded infotainment systems with navigation, leather upholstery, heated and ventilated seats, and advanced safety features like lane departure warning and automatic emergency braking. The focus of this trim is on providing a durable and functional work truck, so luxury features are often optional.
Chassis & Braking
The Silverado 3500 HD utilizes a robust chassis designed to withstand heavy loads. The front suspension features an independent torsion bar setup with double wishbones, providing a comfortable ride and good handling. The rear suspension employs a traditional leaf spring design, optimized for load-carrying capacity. Braking duties are handled by ventilated disc brakes on all four wheels, with larger rotors (355x40mm front, 360x34mm rear) to provide ample stopping power. An Anti-lock Braking System (ABS) is standard. The steering system is a hydraulic recirculating ball setup, offering a direct and responsive feel.
Market Reception & Comparison
The Silverado 3500 HD with the Duramax diesel engine consistently receives positive reviews for its towing and hauling capabilities. Critics praise the engine’s power and torque, as well as the Allison transmission’s smooth operation. Compared to the gasoline-powered Silverado 3500 HD, the Duramax diesel offers superior fuel economy when towing heavy loads, although it typically commands a higher purchase price. Compared to competitors like the Ford Super Duty and Ram Heavy Duty, the Silverado 3500 HD is often seen as a strong contender, offering a compelling combination of capability, reliability, and value. The Regular Cab configuration, while less popular than crew cab models, appeals to buyers who prioritize practicality and affordability.
Legacy
The L5P Duramax engine has established a reputation for long-term reliability and durability. With proper maintenance, these engines can easily exceed 200,000 miles. The Allison 10-speed automatic transmission is also known for its robustness. On the used car market, Silverado 3500 HD models equipped with the Duramax diesel and Allison transmission hold their value well, due to their proven track record and strong demand. The 2024 facelift models are expected to continue this trend, offering a modern and capable heavy-duty truck option for years to come.


