GM L87 Engine

The L87 engine fits 2014-2019 Chevrolet Silverado 1500, GMC Sierra 1500, Tahoe, Yukon, Suburban, and Cadillac Escalade models. This versatile powerplant works across GM’s full-size truck and SUV lineup with proper ECU programming for specific vehicle applications.

The L87 generates between 420-460 horsepower depending on model year and tuning, with torque ratings reaching 460 lb-ft. Earlier versions produced 355-385 horsepower, while later iterations received significant performance upgrades through improved calibration and airflow enhancements.

Yes, all L87 engines feature GM’s Active Fuel Management (AFM) technology that deactivates four cylinders during light-load conditions. This cylinder deactivation system improves highway fuel economy by approximately 5-7% while maintaining full V8 power when needed for acceleration or towing.

The L87 includes Active Fuel Management for cylinder deactivation, while the L86 operates as a fixed eight-cylinder engine without AFM. Both share the same 6.2L displacement and Gen V architecture, but the L87 offers better fuel efficiency for used engines suited to daily driving.

The L87 demonstrates excellent reliability with proper maintenance, commonly exceeding 200,000 miles. The aluminum block construction reduces weight while maintaining durability, and the direct injection system provides consistent performance throughout the engine’s lifespan when using quality fuel and regular oil changes.