The Chevrolet Tahoe (GMTT1XX, facelift 2024) equipped with the 6.2-liter V8 engine and Hydra-Matic transmission represents the latest iteration of Chevrolet’s full-size SUV, launched in October 2024. This variant occupies a premium position within the Tahoe lineup, offering substantial power and towing capacity. It builds upon the foundation of the GMTT1XX platform, a fully redesigned generation introduced in 2021, with the 2024 facelift bringing updated styling and technology. The Tahoe continues to be a dominant force in the American full-size SUV market, catering to families and those requiring significant cargo and passenger space alongside robust capability.
Technical Specifications
| Brand | Chevrolet |
| Model | Tahoe |
| Generation | Tahoe (GMTT1XX, facelift 2024) |
| Type (Engine) | 6.2 V8 (420 Hp) Hydra-Matic |
| Start of production | October, 2024 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 7-9 |
| Doors | 5 |
| Fuel consumption (economy) – urban (EPA) | 15.7 l/100 km (15 US mpg, 18 UK mpg, 6.4 km/l) |
| Fuel consumption (economy) – extra urban (EPA) | 11.8 l/100 km (19.9 US mpg, 23.9 UK mpg, 8.5 km/l) |
| Fuel consumption (economy) – combined (EPA) | 13.8 l/100 km (17 US mpg, 20.5 UK mpg, 7.2 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 6.1 kg/Hp, 163 Hp/tonne |
| Weight-to-torque ratio | 4.1 kg/Nm, 241.8 Nm/tonne |
| Power | 420 Hp @ 5600 rpm |
| Power per litre | 68.2 Hp/l |
| Torque | 623 Nm @ 4100 rpm (459.5 lb.-ft. @ 4100 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | EcoTec3 / L87 |
| Engine displacement | 6162 cm3 (376.03 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 103.25 mm (4.06 in.) |
| Piston Stroke | 92 mm (3.62 in.) |
| Compression ratio | 11.5:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHV, VVT |
| Engine oil capacity | 7.6 l (8.03 US qt | 6.69 UK qt) |
| Coolant | 14.3 l (15.11 US qt | 12.58 UK qt) |
| Kerb Weight | 2577 kg (5681.31 lbs.) |
| Max. weight | 3335 kg (7352.42 lbs.) |
| Max load | 758 kg (1671.1 lbs.) |
| Fuel tank capacity | 91 l (24.04 US gal | 20.02 UK gal) |
| Permitted trailer load with brakes (12%) | 3719 kg (8198.99 lbs.) |
| 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 Hydra-Matic |
| Front suspension | Independent coil spring, Transverse stabilizer, Air Suspension – Optional |
| Rear suspension | Independent multi-link spring suspension with stabilizer, Air Suspension – Optional |
| Front brakes | Ventilated discs, 343×30.4 mm |
| Rear brakes | Ventilated discs, 345×25.4 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 265/65 R18; 275/55 R20; 275/60 R20; 275/50 R22; 285/40 R24 |
| Wheel rims size | 18; 20; 22; 24 |
Powertrain & Engine Architecture
At the heart of this Tahoe variant lies the 6.2-liter EcoTec3 L87 V8 engine. This naturally aspirated powerplant utilizes direct injection, a hallmark of modern GM engines, to deliver a robust 420 horsepower and 460 lb-ft of torque. The engine features a cast iron block with aluminum cylinder heads, and utilizes variable valve timing (VVT) to optimize performance and efficiency across the rev range. Cylinder deactivation is also incorporated, allowing the engine to operate on four cylinders during light-load conditions, further enhancing fuel economy. The Hydra-Matic 10L80 ten-speed automatic transmission is paired with the engine. This transmission is known for its smooth shifts and wide gear ratio spread, contributing to both acceleration and highway cruising efficiency. The transmission is electronically controlled and features overdrive for optimal fuel economy at higher speeds.
Driving Characteristics
The 6.2L V8 and 10-speed automatic combination delivers a confident and capable driving experience. Acceleration is brisk, making highway merging and overtaking effortless. While not as fuel-efficient as smaller engine options, the V8 provides a satisfying level of power for towing and hauling. The 10-speed transmission keeps the engine in its optimal power band, providing responsive acceleration in most situations. Compared to the 5.3L V8, the 6.2L offers a noticeable increase in power and torque, resulting in quicker acceleration and improved towing capacity. The automatic transmission, while smooth, may not offer the same level of driver engagement as a manual transmission, but it simplifies operation and reduces driver fatigue.
Equipment & Trim Levels
The 6.2L V8 engine is typically offered on higher trim levels of the Tahoe, such as the Premier and High Country. Standard features on these trims include leather upholstery, heated and ventilated front seats, a premium sound system, and a comprehensive suite of safety technologies. The High Country trim adds even more luxury features, such as unique exterior styling, a rear-seat entertainment system, and adaptive air suspension. Optional extras include a panoramic sunroof, power-retractable running boards, and a trailering package.
Chassis & Braking
The Tahoe’s chassis features independent front and rear suspension, providing a comfortable ride and good handling characteristics for a vehicle of its size. Rear-wheel drive is standard, with four-wheel drive available as an option. The braking system consists of ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock brakes (ABS) are standard, along with electronic stability control and traction control. Air suspension is available on higher trims, offering adjustable ride height and improved ride comfort. The Tahoe’s substantial weight necessitates a robust braking system, and the ventilated discs provide consistent performance even under heavy use.
Market Reception & Comparison
The 6.2L V8 Tahoe has been well-received by critics and consumers alike. It is praised for its powerful engine, smooth transmission, and spacious interior. Fuel economy is a common criticism, but it is expected for a vehicle of this size and capability. Compared to competitors such as the Ford Expedition and GMC Yukon, the Tahoe offers a similar level of performance and features. The Tahoe’s reputation for reliability and resale value also contributes to its popularity. The 6.2L engine is generally considered more reliable than some of the earlier generation GM V8s, but regular maintenance is still crucial for long-term durability.
Legacy
The GMTT1XX Tahoe with the 6.2L V8 and Hydra-Matic transmission represents a significant step forward in terms of technology, refinement, and capability. The EcoTec3 engine and 10-speed transmission are proven designs that offer a good balance of performance and efficiency. As these vehicles enter the used car market, they are expected to hold their value well due to their strong reputation and desirable features. The longevity of the powertrain will depend on regular maintenance and responsible driving habits, but the 6.2L V8 is generally considered a durable and reliable engine. This Tahoe variant is poised to become a popular choice for families and those seeking a capable and comfortable full-size SUV.
