GM 5.3 Liter V8 EcoTec3 L84 Engine

The L84 is a 5.3 liter, eight-cylinder engine from General Motors used in pickup trucks and SUVs. Featuring an OverHead Valve (OHV), or “push-rod” design” in a “V” configuration, the L84 is part of GM’s Gen V Small Block engine architecture that’s known in trucks and SUVs as EcoTec3.

The L84 is part of the second-generation EcoTec3 engine family, and is the direct successor to the GM L83 engine.The L84 first launched in the then-new 2019 Chevrolet Silverado 1500 and 2019 GMC Sierra 1500 pickup trucks.

To clarify, the L84 designation was also used for the only engine option available for the first-ever Chevrolet Corvette Z06 model in 1963.

GM engine family:	EcoTec3
GM RPO code:	L84
Displacement:	5.3 liters
Configuration & Cylinders:	V8
Vehicle Engine Orientation:	Longitudinal
Valve configuration:	OverHead Valve (OHV) / pushrod
Assembly site:	Tonawanda	NY
Predecessor:	L83
Successor:	None currently

Overview

Back in November 2017, Chevrolet announced that one of the engines powering the 2019 Silverado would be a 5.3-liter V8 engine. A second announcement was made in January 2018, though there was not a great deal of information about the new power plant at that time. Shortly thereafter, GM Authority discovered references to the motor in the 2019 Silverado order guide and 2019 Sierra order guide on April 21^st, 2018.

Notably, the L84 V8 isIt is essentially the same engine as the 5.3L V8 L82, only the L84 features Dynamic Fuel Management, while the L82 instead features Active Fuel Management.

Specifications

GM 5.3L V8 L84 Engine Specs
Engine family:	EcoTec3
GM RPO code:	L84
Displacement:	5.3 liters
Configuration & Cylinders:	V8
Vehicle Engine Orientation:	Longitudinal
Aspiration:	Atmospheric (Naturally Aspirated)
Compression ratio:	11.0:1
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:	Flex Fuel capable
Maximum Engine Speed:	6	000 RPM
Materials
Block:	Aluminum
Cylinder head:	Aluminum
Main bearing caps:	6-bolt Aluminum
Crankshaft:	Cast Iron
Camshaft:	Cast Iron
Connecting rods:	Powdered Metal
Emissions Controls
Auto Engine Stop/Start
Dynamic Fuel Management / Dynamic Skip Fire

Vehicle Applications

GM 5.3L V8 L84 Engine Vehicle Applications
Model Year	Make	Model	Transmission	Power (hp / kW @ RPM)	Torque (lb-ft / Nm @ RPM)
2021 and newer	Cadillac	Escalade	GM 10-Speed Automatic (MQC)	355 / 265 @ 5600	383 / 518 @ 4100
2021 and newer	Chevrolet	Suburban	GM 10-Speed Automatic (MQC)	355 / 265 @ 5600	383 / 518 @ 4100
2021 and newer	Chevrolet	Tahoe	GM 10-Speed Automatic (MQC)	355 / 265 @ 5600	383 / 518 @ 4100
2019 and newer	Chevrolet	Silverado 1500	GM 8-Speed Automatic (MQ3)	355 / 265 @ 5600	383 / 518 @ 4100
2019 and newer	GMC	Sierra 1500	GM 8-Speed Automatic (MQ3)	355 / 265 @ 5600	383 / 518 @ 4100
2021 and newer	GMC	Yukon	GM 10-Speed Automatic (MQC)	355 / 265 @ 5600	383 / 518 @ 4100
2021 and newer	GMC	Yukon XL	GM 10-Speed Automatic (MQC)	355 / 265 @ 5600	383 / 518 @ 4100

Related Engines

The 5.3L L84 is a smaller and less powerful version of the 6.2L L87. The L84 is also essentially the same engine as the 5.3L V8 L82 with Active Fuel Management instead of Dynamic 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.

In that regard, the L84 can also be considered as an upgraded version of the 5.3L V8 L83 that it succeeds, while the L87 is an upgrade of the 6.2L V8 L86 that it succeeds. Both the L83 and L86 were used in the GM K2 platform trucks and SUVs, while the L84 and L87 are used in the GM T1 platform trucks and SUVs that succeed vehicles on the K2 platform.

The L84, L82, L87, L83 and L86 engines are all part of the GM EcoTec3 engine family.

Coming soon.