The Chevrolet Silverado 3500 HD IV, specifically the 2024 model year Regular Cab Long Bed configuration powered by the 6.6-liter V8 engine producing 401 horsepower, represents the latest iteration of Chevrolet’s heavy-duty pickup truck lineage. Introduced as part of the T1XX platform’s mid-cycle refresh, this variant caters to buyers requiring substantial towing and hauling capabilities in a work-focused package. Positioned within the Silverado 3500 HD lineup, this configuration serves as a robust offering for commercial users and individuals needing a powerful, no-frills truck. Production began in 2024, building upon the established reputation of the Silverado HD series for durability and performance.
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) SRW 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 | 7.2 kg/Hp, 139.7 Hp/tonne |
| Weight-to-torque ratio | 4.6 kg/Nm, 219.2 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 | 2870 kg / 6327.27 lbs. |
| Max. weight | 4966 kg / 10948.16 lbs. |
| Max load | 2096 kg / 4620.89 lbs. |
| Fuel tank capacity | 136 l / 35.93 US gal | 29.92 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 |
Powertrain & Engine Architecture
At the heart of this Silverado 3500 HD variant lies the Chevrolet L8T 6.6-liter V8 gasoline engine. This engine is a naturally aspirated, overhead valve (OHV) design featuring direct fuel injection. The L8T produces 401 horsepower at 5200 rpm and 629 Nm (463.93 lb.-ft.) of torque at 4000 rpm. The engine’s robust construction and large displacement are geared towards providing substantial low-end torque, crucial for heavy towing and hauling. The engine utilizes a 10.8:1 compression ratio and two valves per cylinder. The engine is paired with a heavy-duty 10-speed Allison automatic transmission, specifically tuned for the demands of a heavy-duty truck. This transmission provides smooth shifting and optimized gear ratios for both everyday driving and demanding work applications.
Driving Characteristics
The 2024 Silverado 3500 HD with the 6.6L V8 and 10-speed automatic delivers a driving experience focused on capability rather than outright speed. While the engine provides ample power for accelerating an unladen truck, its true strength lies in its ability to maintain speed and control while towing heavy loads. The 10-speed Allison transmission is well-matched to the engine’s torque curve, providing quick downshifts for passing maneuvers and maintaining optimal engine speed when climbing hills. Compared to diesel-powered Silverado 3500 HD models, this gasoline variant offers a quieter and smoother ride, but sacrifices the superior fuel economy and even greater towing capacity of the diesel options. The Regular Cab configuration, with its shorter wheelbase, offers a more maneuverable experience than the Crew Cab models, making it suitable for navigating tighter work sites.
Equipment & Trim Levels
The Regular Cab Long Bed 6.6L V8 Silverado 3500 HD typically comes standard with a functional, work-oriented interior. Standard features include a basic infotainment system with a touchscreen display, Bluetooth connectivity, and basic driver-assistance technologies like automatic emergency braking. The interior upholstery is typically vinyl or cloth, designed for durability and ease of cleaning. Optional extras include upgraded infotainment systems with larger screens, navigation, premium audio systems, and comfort features like heated seats. The trim level often dictates the availability of these options, with higher trims offering more luxurious appointments.
Chassis & Braking
The Silverado 3500 HD utilizes a fully boxed frame for enhanced rigidity and durability. The front suspension features an independent torsion bar setup with double wishbones, while the rear suspension employs a traditional leaf spring design. This configuration is optimized for carrying heavy loads and maintaining stability. Braking duties are handled by ventilated disc brakes on all four wheels, with larger rotors (355x40mm front, 360x34mm rear) providing ample stopping power. An Anti-lock Braking System (ABS) is standard. The steering system utilizes a hydraulic power steering setup with a cone worm and recirculation balls, providing a direct and responsive feel.
Market Reception & Comparison
The 2024 Silverado 3500 HD with the 6.6L V8 engine received generally positive reviews for its robust powertrain and impressive towing capabilities. Critics noted that while the gasoline engine doesn’t match the fuel efficiency of the diesel options, it offers a more affordable entry point into the heavy-duty truck segment. Compared to the Duramax diesel engine, the gasoline variant is typically less expensive to purchase and maintain, but offers lower fuel economy and reduced towing capacity. The gasoline engine is often favored by buyers who prioritize initial cost and don’t require the maximum towing capacity offered by the diesel.
Legacy
The L8T 6.6L V8 engine has proven to be a reliable and durable powertrain in the Silverado HD lineup. While not as fuel-efficient as its diesel counterpart, it provides a compelling option for buyers seeking a powerful and capable heavy-duty truck at a more accessible price point. In the used car market, these Silverado 3500 HD models are generally well-regarded for their longevity and ability to withstand demanding use. Proper maintenance, including regular oil changes and fluid checks, is crucial for ensuring the long-term reliability of this powertrain.
