2007-2010 Chevrolet Silverado 2500 HD II (GMT900) Crew Cab Long Box 6.0 V8 (360 Hp) Automatic

The Chevrolet Silverado 2500 HD II (GMT900) Crew 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 2007 to 2010, this variant occupied a sweet spot in the 2500HD lineup, offering a balance of capability, comfort, and affordability for buyers needing serious towing and hauling capacity. It was part of the GMT900 generation, a substantial redesign that focused on improving interior space, ride quality, and overall refinement compared to its predecessor.

Technical Specifications

INTRODUCTION

The Chevrolet Silverado 2500HD II, specifically the Crew Cab Long Box configuration with the 6.0L V8 and automatic transmission, was a mainstay of Chevrolet’s heavy-duty truck offerings from 2007-2010. Positioned as a robust work truck with improved comfort features, it catered to owners who required substantial towing and payload capacity but didn’t necessarily need the diesel engine’s higher price point and complexity. Built on the GMT900 platform, this generation represented a significant step forward in interior space and refinement for the Silverado HD line. The Crew Cab configuration offered ample passenger room, making it suitable for both work and family use.

Powertrain & Engine Architecture

At the heart of this Silverado 2500HD variant lies the Vortec LY6 6.0-liter V8 engine. This engine is a member of Chevrolet’s Vortec family, known for its robust construction and reliable performance. The LY6 features a cast iron block and aluminum cylinder heads, contributing to its durability. It utilizes a multi-port fuel injection system, delivering fuel directly to each cylinder for efficient combustion. The overhead valve (OHV) valvetrain, while a traditional design, proved to be exceptionally reliable and easy to maintain. The engine produces 360 horsepower at 5400 rpm and 515 lb-ft of torque at 4200 rpm.

The engine is mated to a 6-speed Hydra-Matic automatic transmission. This transmission was designed to handle the substantial torque output of the 6.0L V8 and provide smooth, reliable shifting. The automatic transmission offered convenience and ease of use, particularly for drivers who frequently operate in stop-and-go traffic or tow heavy loads. The gear ratios were optimized for both towing and everyday driving, providing a balance of power and fuel efficiency.

Driving Characteristics

The 6.0L V8 and 6-speed automatic combination in the Silverado 2500HD delivered a capable, if not exhilarating, driving experience. While not as quick as some of the lighter-duty Silverado models, the 6.0L provided ample power for towing and hauling. The automatic transmission shifted smoothly and predictably, making it easy to manage the truck’s weight. Compared to the available Duramax diesel engine, the 6.0L offered less low-end torque, requiring more frequent downshifts when towing heavy loads uphill. However, the 6.0L was significantly quieter and less expensive to maintain than the diesel option. The long box configuration provided a generous cargo bed, while the Crew Cab offered a spacious and comfortable cabin for passengers.

Equipment & Trim Levels

The Silverado 2500HD II offered a range of trim levels, with the 6.0L V8/automatic combination available on most. Standard equipment typically included air conditioning, power windows and locks, and a basic audio system. Higher trim levels, such as LT and LTZ, added features like leather upholstery, heated seats, a premium audio system, and chrome exterior trim. Optional extras included a navigation system, a sunroof, and various towing packages. The Crew Cab configuration came standard with a 60/40 split-folding bench seat, providing seating for up to six passengers. Interior materials were generally durable and practical, reflecting the truck’s work-oriented nature.

Chassis & Braking

The Silverado 2500HD II featured a robust chassis designed to withstand heavy loads. The front suspension utilized an independent torsion bar setup with double wishbones, providing a comfortable ride and good handling. The rear suspension employed a traditional leaf spring design, offering excellent load-carrying capacity. Braking duties were handled by ventilated disc brakes on all four wheels, providing ample stopping power. An Anti-lock Braking System (ABS) was standard, enhancing safety and control. The truck’s steering system utilized a cone worm with recirculation balls, offering precise and responsive steering feel.

Market Reception & Comparison

The Silverado 2500HD II 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 capable performance. Compared to the diesel-powered Silverado 2500HD, the 6.0L offered a more affordable entry point into the heavy-duty truck market. However, it lacked the diesel’s superior towing capacity and fuel efficiency. Fuel economy was typical for a heavy-duty truck, averaging around 14-16 mpg in combined driving. Reliability was generally good, with the 6.0L V8 proving to be a durable and dependable engine.

Legacy

The Chevrolet Silverado 2500HD II (GMT900) with the 6.0L V8 and automatic transmission remains a popular choice in the used truck market today. Its robust construction, reliable powertrain, and spacious interior make it a practical and versatile vehicle for a variety of applications. While older models may require some maintenance, the 6.0L V8 is generally considered to be a relatively easy and inexpensive engine to repair. The GMT900 generation Silverado 2500HD established a strong foundation for future Chevrolet heavy-duty trucks, and the 6.0L V8 continues to be a respected and capable engine in the Chevrolet lineup.