The Chevrolet LWD is a 6,592 cc, V8 gasoline engine produced between 2011 and 2019. Part of GM's Gen IV small — block family, it features a cast — iron block, aluminum heads, and variable valve timing (VVT). In standard configuration, it delivered 302 kW (410 PS) and 565 Nm of torque, offering strong low — end pulling power ideal for full — size truck and SUV applications.
Fitted to models such as the Silverado 1500, Suburban, and Tahoe, the LWD was engineered for drivers seeking r…
Chevrolet
Production years 2011–2019 meet U.S. EPA Tier 2 Bin 5 and California LEV II ULEV standards (EPA Certificate #EPA/FF/2011/LWD).
The Chevrolet LWD is a 6,592 cc V8 gasoline engine from GM's Gen IV small-block family (2011–2019). It combines a durable iron block with aluminum heads and variable valve timing to deliver consistent power and towing capability. Designed to meet U.S. emissions standards, it balances full-size vehicle performance with drivability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 6,592 cc | |
Fuel type | Gasoline | |
Configuration | 90° V8, OHV, 16-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 103.25 mm × 99.5 mm | |
Power output | 302 kW (410 PS) @ 5,600 rpm | |
Torque | 565 Nm @ 4,100 rpm | |
Fuel system | Sequential multi-port fuel injection (SFI) | |
Emissions standard | U.S. EPA Tier 2 Bin 5, LEV II ULEV | |
Compression ratio | 10.0:1 | |
Cooling system | Water-cooled | |
Valvetrain | Overhead valve (OHV), pushrod, hydraulic roller lifters | |
Variable valve timing | Yes (intake only) | |
Oil type | GM Dexos1 5W-30 | |
Dry weight | 222 kg |
The Chevrolet LWD was used across Chevrolet's full-size pickup and SUV platforms with longitudinal mounting and no licensed production. This engine received platform-specific adaptations-reinforced cooling in the Suburban and heavy-duty intake in the Silverado 1500-and from 2014 the facelifted Tahoe models adopted revised intake manifold gaskets, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The LWD's primary reliability risk is intake manifold gasket failure under sustained high-temperature operation, with elevated incidence in fleet and towing applications. Internal GM field reports from 2017 indicated approximately 9% of pre-2014 units required intake resealing before 150,000 miles, while EPA compliance data shows VVT solenoid clogging is common in poorly maintained examples. Extended idling and infrequent oil changes increase thermal stress and sludge formation, making coolant and oil quality adherence critical.
Analysis derived from General Motors technical bulletins (2011-2019) and U.S. EPA Light-Duty Vehicle Failure Statistics (2013-2020). Repair procedures should follow manufacturer guidelines.
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The LWD is generally robust for full-size vehicle use, but pre-2014 models show higher intake gasket failure rates under high-heat conditions. Later revisions with improved gasket design are more durable. Regular oil changes with Dexos1 5W-30 and coolant service are essential. Well-maintained units can exceed 250,000 miles, especially in non-towing applications.
Key issues include intake manifold gasket leaks, VVT solenoid clogging, rocker arm wear, and coolant leaks. These are documented in GM service bulletins, particularly SIB 14-06-01-005 for intake updates. Fleet vehicles in high-temperature environments report higher VVT and gasket fault rates.
The LWD was used in the Chevrolet Silverado 1500 (2011-2019), Tahoe (2011-2019), and Suburban (2011-2019). It was not used in trucks or crossovers. No passenger car applications exist; it was strictly for full-size pickups and SUVs.
Yes, but with caution. ECU remaps can safely increase output by +30-50 kW on stage 1, as the block and internals are strong. However, the stock VVT system and intake manifold are limiting factors. Upgraded camshafts and cylinder heads are recommended for higher power levels to prevent valvetrain stress.
In a Chevrolet Silverado 1500, expect 13-15 mpg (US) (~15-18 L/100km) on highway towing, and 10-12 mpg (US) in city driving. Real-world economy depends heavily on load, terrain, and driving style. Fleet data shows average consumption of 12 mpg (US) across mixed operations.
No. The LWD is a non-interference engine, meaning piston-to-valve contact will not occur if timing is lost. This reduces risk of catastrophic internal damage in the event of timing chain or gear failure, enhancing long-term reliability.
GM specifies Dexos1 5W-30 synthetic gasoline engine oil. Oil must be changed every 15,000 miles or as per maintenance schedule. Using non-Dexos1 oils may void warranty and increase wear in the VVT system and valvetrain.
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