The L82 is a 5.3 liter, eight-cylinder engine from General Motors used in pickup trucks. Featuring an OverHead Valve (OHV), or “push-rod” design” in a “V” configuration, the L82 is part of GM’s Gen V Small Block engine architecture that’s known in trucks and SUVs as EcoTec3.
The L82 is essentially the same engine as the 5.3L V8 L84 with Dynamic Fuel Management, but instead of being equipped with Dynamic Fuel Management, the L82 features Active Fuel Management. The L82 is somewhat of a direct successor to the GM L83 engine, and was first launched in the fourth-generation 2019 Chevy Silverado 1500 and fourth-generation 2019 GMC Sierra 1500.
To clarify, the L82 designation was also used for a performance variant of the 350 cubic-inch V8 produced from 1973 to 1980. This particular L82 was used to power the Chevrolet Corvette as well as the Chevrolet Camaro.
| GM engine family: | EcoTec3 | |
| GM RPO code: | L82 | |
| Displacement: | 5.3 liters | |
| Configuration & Cylinders: | V8 | |
| Vehicle orientation: | Longitudinal | |
| Valve configuration: | OverHead Valve (OHV) / pushrod | |
| Assembly site: | Tonawanda | New York |
| Years in production: | 2018-present | |
| Predecessor: | L83 | |
| Successor: | L84Â (indirectly) |
| Engine family: | EcoTec3 | |
| GM RPO code: | L82 | |
| Displacement: | 5.3Â liters | |
| Configuration & Cylinders: | V8 | |
| Vehicle Engine Orientation: | Longitudinal | |
| Aspiration: | atmospheric (naturally aspirated) | |
| Compression ratio: | 11.1:1 | |
| Valve configuration: | Overhead Valve (OHV) | |
| Valves per cylinder: | 2 | |
| Assembly site: | GM Tonawanda plant – New York – USA | |
| Valve lifters: | Hydraulic Roller | |
| Firing order: | 1-8-7-2-6-5-4-3 | |
| Bore x stroke: | 3.780 x 3.622-inches | |
| Fuel system: | SIDI (Spark Ignited Direct Injection) | |
| Fuel Type: | Gasoline (not Flex Fuel capable) | |
| Maximum Engine Speed: | 6 | 000 RPM |
| Emissions controls: | Catalytic converter, Positive crankcase ventilation (PCV) | |
| Materials | ||
| Block: | Cast Aluminum | |
| Cylinder head: | Cast Aluminumn | |
| Intake manifold: | Plastic | |
| Exhaust manifold: | Steel | |
| Main bearing caps: | ||
| Crankshaft: | Cast Iron | |
| Camshaft: | Cast Iron | |
| Connecting rods: | Powdered Metal | |
| Additional features: | Active Fuel Management | |
The L82 first launched in the all-new 2019 Chevrolet Silverado 1500 and all-new 2019 GMC Sierra 1500.
| Model Year | Make | Model | Transmission | Power (hp / kW @ RPM) | Torque (lb-ft / Nm @ RPM) |
|---|---|---|---|---|---|
| 2019 and newer | Chevrolet | Silverado 1500 | GM 6-Speed Automatic (MYC) | 355 / 250 @ 5600 | 383 / 519 @ 4100 |
| 2019 and newer | Chevrolet | Silverado 1500 | GM 6-Speed Automatic (MYC) | 355 / 250 @ 5600 | 383 / 519 @ 4100 |
The 5.3L V8 L82 engine has a lot in common with the 5.3L V8 L84 (second-gen EcoTec3), which succeeds the 5.3L V8 L83 (first-generation EcoTec3). Compared to the L83, the L82 features several changes to the block, a new valley cover, exhaust and on-center water pump. But while the L84 uses the advanced Dynamic Fuel Management and features automatic start/stop functionality, the L82 features the less advanced Active Fuel Management (AFM) and is not equipped with auto stop/start.
All of the aforementioned engines are part of the GM EcoTec3 engine family, comprised of the following gasoline powerplants:
- Gen 1:
- 4.3L V-6 LV1Â EcoTec3
- 4.3L V-6 LV3Â EcoTec3
- 5.3L V-8 L83Â EcoTec3
- 5.3L V-8 L8BÂ EcoTec3Â with eAssist mild hybrid
- 6.2L V-8 L86Â EcoTec3
- Gen 2:
- 5.3L V-8 L84Â EcoTec3
- 6.2L V-8 L87Â EcoTec3
- 5.3L V-8 L82 EcoTec3 (Gen 1 with several Gen 2 updates)
Notably the 6.2L L87 is a bigger and more powerful version of the 5.3-liter L82 and 5.3-liter L84. The L87 can is also considered to be an upgraded version of the 6.2L V8 L86 that it succeeds, while the L84 is an upgrade of the 5.3L V8 L83 that it succeeds. Both the L86 and L83 were used in the GM K2 platform trucks and SUVs, while the L87 and L84 are used in the GM T1 platform trucks and SUVs that succeed vehicles on the K2 platform.
The L87, L84, L82, L86 and L83 engines are all part of the GM EcoTec3 engine family.
Follow our coverage of GM L82 engine news.
We will update this section when GM L82 engine pictures become available.
