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

Technical Specifications

The Chevrolet Silverado 2500 HD III (K2XX) Double Cab Standard 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 sweet spot in the Silverado 2500HD lineup, offering a balance of capability, comfort, and affordability. It was part of the third generation of the K2XX platform, designed to provide increased strength, refinement, and towing capacity compared to its predecessors. This configuration was aimed at buyers needing serious truck capability for work or recreational purposes, but who didn’t necessarily require the diesel engine’s higher price point or the performance of higher trim levels.

Powertrain & Engine Architecture

At the heart of this Silverado 2500 HD variant lies the Vortec L96 6.0-liter V8 engine. This engine is a member of Chevrolet’s well-regarded Vortec family, known for its robust construction and reliable performance. The L96 features a cast iron block and aluminum cylinder heads, contributing to its durability. It utilizes a multi-port fuel injection system for precise fuel delivery and is equipped with overhead valve (OHV) valvetrain with variable valve timing (VVT) to optimize performance and efficiency across the rev range. The engine produces 360 horsepower at 5400 rpm and 515 lb-ft of torque at 4200 rpm. This torque output is particularly important for heavy-duty applications like towing and hauling. The engine is longitudinally mounted in the chassis, sending power rearward. The transmission is a six-speed Hydra-Matic automatic, chosen for its durability and ability to handle the engine’s substantial torque. This transmission features electronically controlled shifting for smooth and responsive operation.

Driving Characteristics

The 6.0-liter V8 and six-speed automatic combination delivers a capable, if not overtly sporty, driving experience. While not as quick as the diesel-powered variants, the gasoline engine provides ample power for everyday driving and demanding tasks. The automatic transmission is well-tuned, offering smooth shifts and appropriate gear selection for various driving conditions. The gear ratios are optimized for towing and hauling, providing strong low-end torque. Compared to the manual transmission option, the automatic offers greater convenience, especially in stop-and-go traffic. However, it does result in a slight reduction in fuel economy. The 6.0L felt less strained than the diesel when not towing, offering a more relaxed driving experience for daily use.

Equipment & Trim Levels

The 6.0-liter V8/automatic configuration was available across several Silverado 2500 HD trim levels, including the WT (Work Truck), LT, and LTZ. Standard equipment on the base WT model included air conditioning, a basic audio system, and vinyl upholstery. The LT trim added features like cloth upholstery, power windows and locks, and an upgraded audio system. The LTZ trim offered premium features such as leather upholstery, heated front seats, and a navigation system. Optional extras available across all trims included a trailer brake controller, a rearview camera, and various towing packages. The Double Cab configuration provided ample space for passengers, making it a practical choice for families or work crews.

Chassis & Braking

The Silverado 2500 HD III (K2XX) features a robust chassis designed to handle heavy loads. The front suspension utilizes an independent torsion bar and double wishbone setup, providing a comfortable ride and good handling. The rear suspension employs a traditional leaf spring design, optimized for load-carrying capacity. Braking duties are handled by ventilated discs on all four wheels, providing ample stopping power. An Anti-lock Braking System (ABS) is standard, enhancing safety and control. The steering system is a cone worm with recirculation balls, offering precise and responsive steering feel. Wheel sizes varied depending on the trim level, with 17-inch and 18-inch options available.

Market Reception & Comparison

The 6.0-liter V8 Silverado 2500 HD was generally well-received by critics and consumers. It was praised for its strong towing capacity, comfortable ride, and relatively affordable price point. Compared to the Duramax diesel engine, the 6.0-liter V8 offered a lower initial cost but sacrificed some fuel economy and ultimate towing capability. The gasoline engine was also considered easier to maintain, as it did not require the specialized maintenance associated with diesel engines. Fuel economy was rated at around 15 mpg city and 18 mpg highway, which was competitive for a heavy-duty truck of its size.

Legacy

The Vortec L96 6.0-liter V8 has proven to be a durable and reliable engine, and the Silverado 2500 HD III (K2XX) with this powertrain continues to be a popular choice in the used truck market. While not as fuel-efficient as newer trucks with advanced technologies, it remains a capable and affordable option for those needing a heavy-duty workhorse. Common maintenance items include regular oil changes and spark plug replacements. Overall, this Silverado variant represents a solid and dependable truck that continues to provide years of service.