The Chevrolet Silverado 3500 HD IV, specifically the 2024 model year facelift featuring the Regular Cab Long Bed configuration with the 6.6L Duramax Turbo-Diesel V8 engine producing 470 horsepower, represents the pinnacle of capability in Chevrolet’s heavy-duty truck lineup. Introduced as part of the T1XX generation, this variant caters to buyers requiring substantial towing and hauling capacity without sacrificing modern comfort and technology. Production began in 2024, building upon the established reputation of the Silverado HD series for durability and performance. This particular configuration sits at the upper end of the Silverado 3500 HD range, offering a balance between work-focused utility and refined features.
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) 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 | 6.7 kg/Hp, 148.5 Hp/tonne |
| Weight-to-torque ratio | 2.4 kg/Nm, 417.8 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 | 3164 kg (6975.43 lbs.) |
| Max. weight | 5216 kg (11499.31 lbs.) |
| Max load | 2052 kg (4523.89 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 | 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, 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 IV with the 6.6L Duramax engine and 10-speed Allison automatic transmission is a heavy-duty pickup truck designed for demanding tasks. It builds upon the foundation of the T1XX platform, representing a significant refresh of the fourth-generation Silverado HD series. This configuration, with its regular cab and long bed, is geared towards commercial users and individuals who prioritize maximum payload and towing capacity over passenger space. The facelift introduced for 2024 brought updated styling, enhanced technology, and refinements to the Duramax engine for improved performance and efficiency.
Powertrain & Engine Architecture
At the heart of this Silverado 3500 HD lies the 6.6-liter L5P Duramax turbocharged diesel V8 engine. This engine is a cornerstone of Chevrolet’s heavy-duty lineup, known for its robust construction and impressive torque output. The L5P utilizes a cast iron block, aluminum cylinder heads, and a forged steel crankshaft. It employs a diesel commonrail fuel injection system, delivering highly pressurized fuel directly into the cylinders for efficient combustion. The engine features an overhead valve (OHV) valvetrain, a design choice favored for its durability and low-end torque characteristics. A variable geometry turbocharger and intercooler work in tandem to optimize boost pressure and reduce intake air temperatures, maximizing power and efficiency. The 10-speed Allison automatic transmission is specifically calibrated to handle the immense torque produced by the Duramax engine, providing smooth and responsive shifting. This transmission features electronically controlled shifts and a wide gear ratio spread, optimizing performance for both towing and everyday driving.
Driving Characteristics
The Silverado 3500 HD 6.6L Duramax with the 10-speed Allison delivers a driving experience focused on capability and control. While not designed for sporty handling, the truck provides a surprisingly comfortable ride, especially considering its heavy-duty nature. The 10-speed transmission allows the engine to operate within its optimal power band more frequently, resulting in strong acceleration and effortless towing. The gear ratios are well-suited for hauling heavy loads, providing ample torque at low speeds. Compared to gasoline-powered Silverado 3500 HD models, the Duramax diesel offers significantly more torque, making it the preferred choice for those who regularly tow large trailers or haul heavy payloads. Compared to other Duramax configurations, the 470 horsepower variant provides a noticeable increase in power over lower-output versions, enhancing its overall performance.
Equipment & Trim Levels
The Regular Cab Long Bed 6.6L Duramax Silverado 3500 HD typically comes standard with a robust set of features geared towards work and utility. These include a heavy-duty suspension, locking rear differential, and a trailer brake controller. Interior appointments generally feature durable vinyl or cloth upholstery, with a focus on practicality rather than luxury. Standard technology includes a touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, as well as a rearview camera. Optional extras often include leather upholstery, heated and ventilated front seats, a premium audio system, and advanced safety features such as lane departure warning and automatic emergency braking. Trim levels, such as Work Truck (WT), LT, and High Country, offer progressively more features and refinement.
Chassis & Braking
The Silverado 3500 HD utilizes a fully boxed frame constructed from high-strength steel, providing a solid foundation for its heavy-duty capabilities. The front suspension features an independent torsion bar setup with double wishbone components, while the rear suspension employs a traditional leaf spring design. This configuration is optimized for handling heavy loads and maintaining stability. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. The front brakes measure 355×40 mm, while the rear brakes are 360×34 mm. An Anti-lock Braking System (ABS) is standard, enhancing safety and control during emergency braking situations.
Market Reception & Comparison
The 2024 Silverado 3500 HD 6.6L Duramax has been well-received by critics and consumers alike. Reviewers consistently praise its impressive towing and hauling capabilities, as well as its refined Duramax engine. Fuel economy, while not a primary concern for heavy-duty truck buyers, is competitive within its segment. Compared to the gasoline-powered Silverado 3500 HD models, the Duramax diesel offers superior torque and fuel efficiency when towing heavy loads. Compared to rival trucks from Ford and Ram, the Silverado 3500 HD offers a compelling combination of capability, technology, and value. Reliability has generally been good, although diesel engines can be more complex and potentially more expensive to maintain than gasoline engines.
Legacy
The L5P Duramax engine has established itself as a benchmark for diesel performance and durability in the heavy-duty truck segment. The 10-speed Allison automatic transmission has further enhanced the driving experience, providing smooth and efficient power delivery. The 2024 Silverado 3500 HD IV, with this powertrain combination, is expected to maintain a strong resale value in the used car market due to its proven reliability and capability. These trucks are likely to remain popular among those who require a robust and dependable workhorse for years to come. Proper maintenance, including regular oil changes and fuel filter replacements, will be crucial to ensuring the long-term health and longevity of this powerful powertrain.
