The Chevrolet Silverado 3500 HD III (K2XX) Regular Cab Long Box, equipped with the 6.0-liter V8 engine and automatic transmission, represents a significant iteration in Chevrolet’s heavy-duty truck lineage. Produced from 2015 to 2019, this variant occupied a crucial position in the Silverado 3500 HD lineup, catering to buyers needing substantial towing and hauling capabilities without the expense or complexity of diesel options. This configuration, often referred to as a “gas” 3500HD, provided a balance between power, cost, and relative simplicity, making it a popular choice for both commercial and personal use. The K2XX platform introduced substantial improvements in ride quality, interior refinement, and overall capability compared to its predecessors.
Technical Specifications
| Brand | Chevrolet |
| Model | Silverado 3500 HD |
| Generation | Silverado 3500 HD III (K2XX) Regular Cab Long Box |
| Type (Engine) | 6.0 V8 (360 Hp) DRW Automatic |
| Start of production | 2015 |
| End of production | 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 2 |
| Doors | 2 |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 8 kg/Hp, 125.6 Hp/tonne |
| Weight-to-torque ratio | 5.6 kg/Nm, 179.6 Nm/tonne |
| Power | 360 Hp @ 5400 rpm |
| Power per litre | 60.3 Hp/l |
| Torque | 515 Nm @ 4200 rpm, 379.84 lb.-ft. @ 4200 rpm |
| Maximum engine speed | 6000 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | Vortec L96 |
| Engine displacement | 5967 cm3, 364.13 cu. in. |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 101.6 mm, 4 in. |
| Piston Stroke | 92 mm, 3.62 in. |
| Compression ratio | 9.6:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHV, VVT |
| Engine oil capacity | 5.7 l, 6.02 US qt | 5.02 UK qt |
| Coolant | 16.1 l, 17.01 US qt | 14.17 UK qt |
| Kerb Weight | 2867 kg, 6320.65 lbs. |
| Max. weight | 6123 kg, 13498.9 lbs. |
| Max load | 3256 kg, 7178.25 lbs. |
| Trunk (boot) space – maximum | 2162 l, 76.35 cu. ft. |
| Fuel tank capacity | 136 l, 35.93 US gal | 29.92 UK gal |
| Permitted trailer load with brakes (12%) | 6486 kg, 14299.18 lbs. |
| Length | 5699 mm, 224.37 in. |
| Width including mirrors | 2438 mm, 95.98 in. |
| Height | 1965 mm, 77.36 in. |
| Wheelbase | 3393 mm, 133.58 in. |
| Front track | 1748 mm, 68.82 in. |
| Rear (Back) track | 1906 mm, 75.04 in. |
| Ride height (ground clearance) | 204 mm, 8.03 in. |
| Minimum turning circle (turning diameter) | 14 m, 45.93 ft. |
| 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 | 6 gears, automatic transmission Hydra-Matic |
| 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 |
| Tires size | 235/80 R17; 265/70 R18 |
| Wheel rims size | 7.5J x 17; 8J x 18 |
INTRODUCTION
The Chevrolet Silverado 3500 HD III (K2XX) Regular Cab Long Box with the 6.0L V8 and automatic transmission was produced between 2015 and 2019. It was built on the K2XX platform, a significant redesign for the Silverado and Sierra HD trucks. This generation focused on improving ride quality, interior space, and overall refinement while maintaining the heavy-duty capabilities expected of a 3500-series truck. The Regular Cab Long Box configuration, paired with the 6.0L engine, was positioned as a work-focused trim, appealing to customers who prioritized functionality and towing capacity over luxury features. It served as a more affordable alternative to the diesel-powered models, offering a robust gasoline engine capable of handling demanding tasks.
Powertrain & Engine Architecture
At the heart of this Silverado 3500 HD variant lies the Vortec L96 6.0-liter V8 engine. This engine is a member of Chevrolet’s small-block V8 family, known for its durability and relatively simple design. The L96 features a cast iron block and aluminum cylinder heads, utilizing a multi-port fuel injection system for precise fuel delivery. The engine employs an overhead valve (OHV) valvetrain with variable valve timing (VVT) to optimize performance and efficiency across a wider RPM range. The engine produces 360 horsepower at 5400 rpm and 380 lb-ft of torque at 4200 rpm. The engine is longitudinally mounted in the chassis. The powertrain is coupled with a six-speed Hydra-Matic automatic transmission, chosen for its durability and ability to handle the engine’s torque output. This transmission features electronically controlled shifting and overdrive for improved fuel economy during highway cruising. The transmission was specifically tuned to provide smooth and reliable operation under heavy loads.
Driving Characteristics
The 6.0L V8 and automatic transmission combination delivers a capable, though not exceptionally quick, driving experience. Acceleration is adequate for everyday driving and towing, but it lacks the low-end grunt of the Duramax diesel engine. The automatic transmission provides smooth shifts, but can sometimes hunt for the right gear when climbing hills or under heavy acceleration. The gear ratios are optimized for towing, providing ample torque in lower gears. Compared to the manual transmission option, the automatic offers greater convenience, especially in stop-and-go traffic. However, the manual transmission generally provides slightly better fuel economy and more direct control. The truck’s substantial weight (around 6,320 lbs) is noticeable, but the torsion bar front suspension and leaf spring rear suspension provide a reasonably comfortable ride, especially considering its heavy-duty nature.
Equipment & Trim Levels
The Silverado 3500 HD III Regular Cab Long Box with the 6.0L V8 typically came standard with basic work-truck features. This included vinyl upholstery, a basic audio system, air conditioning, and power windows and locks. The interior was functional and durable, designed to withstand the rigors of daily use. Optional extras included upgraded audio systems, power-adjustable seats, a trailer brake controller, and various towing packages. Higher trim levels, such as the LT, added features like cloth or leather upholstery, chrome exterior trim, and additional convenience features. The Regular Cab configuration prioritized interior space for two occupants, with a focus on maximizing cargo capacity in the long bed.
Chassis & Braking
The Silverado 3500 HD III utilizes a robust chassis designed to handle heavy loads. The front suspension features an independent torsion bar setup with double wishbone components, providing a comfortable ride and good handling. The rear suspension employs a traditional leaf spring design, offering excellent load-carrying capacity. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. An Anti-lock Braking System (ABS) is standard, enhancing safety during emergency braking situations. The steering system utilizes a cone worm with recirculation balls, providing a solid and predictable steering feel. The truck’s dual rear wheels (DRW) configuration further enhances stability and load-carrying capacity.
Market Reception & Comparison
The 6.0L V8-powered Silverado 3500 HD was generally well-received by critics and customers alike. It was praised for its affordability, reliability, and ample towing capacity. However, it was often criticized for its lower fuel economy compared to the diesel models. Compared to the 6.6L Duramax diesel, the 6.0L V8 offered significantly less torque and lower towing capacity, but at a considerably lower price point. The 6.0L engine was also considered easier and less expensive to maintain than the more complex diesel engine. Against competitors like the Ford Super Duty and Ram Heavy Duty, the Silverado 3500 HD offered a competitive combination of features, capability, and value.
Legacy
The Vortec L96 6.0L V8 engine has proven to be a durable and reliable powertrain. While not as fuel-efficient as modern engines, it remains a popular choice for those seeking a robust and relatively simple gasoline engine. In the used car market, Silverado 3500 HD models equipped with this engine are often sought after by buyers who prioritize affordability and simplicity. The K2XX platform Silverado 3500 HDs are generally considered to be a significant improvement over previous generations, offering a more refined and comfortable driving experience. Properly maintained examples of this truck continue to provide years of reliable service, making them a valuable asset for both work and personal use.
