The Chevrolet Silverado 2500 HD IV, specifically the Crew Cab Long Bed configuration with the 6.6-liter Duramax Turbo Diesel V8 engine producing 470 horsepower and paired with a 10-speed automatic transmission and four-wheel drive, represents a significant iteration in Chevrolet’s heavy-duty truck lineage. Introduced as part of the refreshed T1XX platform in 2024, this variant builds upon the established reputation of the Silverado HD series for capability, durability, and towing prowess. It occupies a premium position within the 2500 HD lineup, targeting buyers who require substantial power and capacity for demanding work or recreational activities. This model year brought a substantial facelift to the Silverado HD, focusing on interior refinement and technological upgrades alongside continued improvements to the robust powertrain.
Technical Specifications
| Brand | Chevrolet |
| Model | Silverado 2500 HD |
| Generation | Silverado 2500 HD IV (T1XX, facelift 2024) Crew Cab Long Bed |
| Type (Engine) | 6.6 Duramax TD V8 (470 Hp) 4WD Automatic |
| Start of production | 2023 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 5 |
| Doors | 4 |
| Fuel Type | Diesel |
| Weight-to-power ratio | 7.5 kg/Hp, 133.9 Hp/tonne |
| Weight-to-torque ratio | 2.7 kg/Nm, 376.7 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 | 3509 kg (7736.02 lbs.) |
| Max. weight | 5148 kg (11349.4 lbs.) |
| Max load | 1639 kg (3613.38 lbs.) |
| Fuel tank capacity | 136 l (35.93 US gal | 29.92 UK gal) |
| Permitted trailer load with brakes (12%) | 9072 kg (20000.34 lbs.) |
| Length | 6759 mm (266.1 in.) |
| Width including mirrors | 2079 mm (81.85 in.) |
| Height | 2023 mm (79.65 in.) |
| Wheelbase | 4369 mm (172.01 in.) |
| Front track | 1731 mm (68.15 in.) |
| Rear (Back) track | 1736 mm (68.35 in.) |
| Ride height (ground clearance) | 256 mm (10.08 in.) |
| Drivetrain Architecture | All wheel drive (4×4). ICE drives rear wheels, front wheels 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 | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 245/75 R17; 265/70 R17; 275/70 R18; 265/65 R20 |
| Wheel rims size | 7.5J x 17; 8J x 18; 8.5J x 20 |
Powertrain & Engine Architecture
At the heart of this Silverado 2500 HD variant lies the 6.6-liter L5P Duramax turbo-diesel V8 engine. This engine is a cornerstone of Chevrolet’s heavy-duty truck strategy, renowned for its robust construction and substantial torque output. The L5P utilizes a cast iron block, aluminum cylinder heads, and a forged steel crankshaft, contributing to its exceptional durability. The engine employs a common-rail direct fuel injection system, delivering fuel at extremely high pressures for optimized combustion efficiency and reduced emissions. A single variable geometry turbocharger with an intercooler further enhances performance. The OHV valvetrain, while traditional, is optimized for low-end torque and reliability. The 10-speed Allison automatic transmission is specifically calibrated to handle the engine’s immense torque, providing smooth and efficient power delivery. This transmission features electronically controlled shifts and a wide gear ratio spread, optimizing both towing performance and fuel economy.
Driving Characteristics
The 470 horsepower and 1322 lb-ft of torque delivered by this combination translate into impressive real-world performance. Acceleration, while not the primary focus of a heavy-duty truck, is surprisingly brisk. The 10-speed Allison transmission keeps the engine within its optimal power band, providing strong pull throughout the rev range. The four-wheel-drive system ensures excellent traction in a variety of conditions, making it suitable for both on-road and off-road use. Compared to lower-output gasoline engine options, this Duramax variant offers significantly more towing capacity and a more relaxed driving experience when hauling heavy loads. While the gasoline engines may feel more responsive in everyday driving, the Duramax excels when put to work. Compared to other Duramax configurations, the 470 hp version offers a noticeable power increase over earlier iterations, improving overall performance.
Equipment & Trim Levels
The Crew Cab Long Bed configuration is a popular choice for buyers needing both passenger space and cargo capacity. Standard equipment typically includes features like an 8-inch touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, a rearview camera, and keyless entry. Higher trim levels, such as LTZ and High Country, add premium features like leather upholstery, heated and ventilated front seats, a premium sound system, and advanced safety technologies like adaptive cruise control and lane departure warning. Optional extras include a power sunroof, a rear-seat entertainment system, and a variety of towing packages.
Chassis & Braking
The Silverado 2500 HD utilizes a fully boxed frame for enhanced rigidity and durability. The front suspension features an independent torsion bar setup with double wishbones, providing a comfortable ride and precise handling. The rear suspension employs a traditional leaf spring design, optimized for load-carrying capacity. Ventilated disc brakes are used on all four wheels, providing ample stopping power. The rear brakes are slightly larger than the front brakes to accommodate the heavier loads typically carried by these trucks. An Anti-lock Braking System (ABS) is standard, enhancing safety and control during emergency braking situations.
Market Reception & Comparison
The 2024 Silverado 2500 HD with the 6.6-liter Duramax engine and 10-speed automatic transmission has been well-received by critics and consumers alike. Reviewers praise its powerful engine, smooth transmission, and comfortable ride. Fuel economy, while not exceptional, is competitive for a heavy-duty diesel truck. Compared to the gasoline engine options, the Duramax offers superior towing capacity and a more refined driving experience. Compared to rival trucks from Ford and Ram, the Silverado 2500 HD is often cited as offering a compelling combination of capability, value, and reliability.
Legacy
The L5P Duramax engine has established a strong reputation for reliability and longevity. With proper maintenance, these engines are known to exceed 200,000 miles without major issues. The 10-speed Allison transmission has also proven to be a durable and dependable component. As a result, the 2024 Silverado 2500 HD with this powertrain configuration is expected to hold its value well in the used car market. These trucks are likely to remain popular choices for buyers seeking a capable and reliable heavy-duty workhorse for years to come.
