2015-2019 Chevrolet Silverado 2500 HD III (K2XX) Crew Cab Long Box 6.0 V8 (360 Hp) Automatic

Technical Specifications

The Chevrolet Silverado 2500HD III (K2XX) Crew Cab Long Box, equipped with the 6.0-liter V8 engine and a six-speed automatic transmission, produced between 2015 and 2019, was a cornerstone of Chevrolet’s heavy-duty truck offerings. Built on the K2XX platform, this generation represented a significant leap forward in terms of capability, refinement, and interior space. The Crew Cab configuration, combined with the long bed, provided a practical solution for owners needing both passenger room and substantial cargo capacity. This particular variant aimed to bridge the gap between the more affordable base models and the more powerful diesel options, appealing to a broad range of buyers from contractors to families needing a robust vehicle.

Powertrain & Engine Architecture

At the heart of this Silverado 2500HD 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. It features a cast iron block and aluminum cylinder heads, utilizing a multi-port fuel injection system for precise fuel delivery. The engine produces 360 horsepower at 5400 rpm and 380 lb-ft of torque at 4200 rpm. The overhead valve (OHV) valvetrain, coupled with variable valve timing (VVT), helps optimize performance and efficiency across a wider range of engine speeds. The engine is longitudinally mounted, sending power to the rear wheels via a six-speed Hydra-Matic automatic transmission. This transmission was chosen for its smooth shifting and ability to handle the engine’s substantial torque output. The Hydra-Matic 6L80E transmission features electronically controlled shifting and overdrive for improved fuel economy during highway cruising.

Driving Characteristics

The 6.0L V8 and automatic transmission combination delivers a capable, though not overly sporty, driving experience. Acceleration is adequate for everyday driving and towing, but it doesn’t offer the quick responsiveness of some competitors. The automatic transmission is well-tuned, providing smooth and predictable shifts. However, it can sometimes hunt for the right gear when climbing hills or under heavy load. The gear ratios are optimized for towing and hauling, prioritizing low-end torque over outright acceleration. Compared to the available Duramax diesel engine, the 6.0L V8 offers significantly less torque, resulting in a lower maximum towing capacity. However, it provides a quieter and smoother ride, and avoids the complexities and higher maintenance costs associated with diesel technology. Compared to the 6-speed manual transmission option, the automatic provides ease of use, especially in stop-and-go traffic and when towing.

Equipment & Trim Levels

The Silverado 2500HD III Crew Cab Long Box 6.0L Automatic was available in various trim levels, including WT (Work Truck), LT, and LTZ. The base WT trim offered essential features like air conditioning, a basic audio system, and vinyl upholstery. The LT trim added features such as cloth upholstery, power windows and locks, and an upgraded audio system. The LTZ trim, the most luxurious option, included leather upholstery, heated front seats, a premium audio system, and additional chrome exterior trim. Standard safety features included ABS, stability control, and multiple airbags. Optional extras included a navigation system, a rear-view camera, parking sensors, and a sunroof.

Chassis & Braking

The Silverado 2500HD features a robust chassis designed to handle heavy loads. The front suspension utilizes 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. Brakes consist of ventilated discs on all four wheels, providing ample stopping power. The front brakes measure 350x40mm, while the rear brakes are 360x34mm. An anti-lock braking system (ABS) is standard, enhancing safety during emergency braking situations. Steering is handled by a cone worm with recirculation balls system, providing a solid and predictable feel.

Market Reception & Comparison

The Silverado 2500HD III (K2XX) with the 6.0L V8 and automatic transmission was generally well-received by critics and consumers. It was praised for its comfortable ride, spacious interior, and strong towing capacity. However, some reviewers noted that the 6.0L V8 lacked the sheer power of the Duramax diesel engine. Fuel economy was considered average for a heavy-duty truck, with EPA estimates around 15 mpg city and 18 mpg highway. Compared to the diesel variants, the 6.0L offered a lower initial cost and potentially lower maintenance expenses, making it an attractive option for buyers who didn’t require the maximum towing capacity. Reliability was generally good, with the Vortec L96 engine proving to be a durable and dependable powerplant.

Legacy

The Chevrolet Silverado 2500HD III (K2XX) Crew Cab Long Box 6.0L V8 Automatic remains a popular choice in the used truck market. The Vortec L96 engine is known for its longevity and relatively simple maintenance requirements. While not as fuel-efficient as newer trucks, it offers a compelling combination of capability, comfort, and affordability. These trucks are often sought after by those needing a reliable workhorse for towing and hauling, and their spacious crew cab configuration makes them suitable for family use as well. The K2XX platform proved to be a solid foundation for the Silverado HD series, and this generation continues to be regarded as a capable and dependable heavy-duty truck.