The 5.3L EcoTec3 V8

The 5.3L EcoTec3 V8 is rated at 355 horsepower and 383 lb-ft of torque. It pairs with a 10-speed automatic and carries Dynamic Fuel Management and Automatic Stop/Start. On a Silverado 1500 it is one of four engines you can order; on a Tahoe or a Suburban, one of three. Our Central Indiana store sells and services all three vehicles.

Among the Silverado's four it sits between the turbo four and the larger V8 on horsepower, comes in below all three of the others on torque, and is the only V8 rated on regular fuel. Figures on this page are for the 2026 model year.

A Chevrolet Silverado 1500 Trail Boss driving through deep water and throwing spray

Specifications

These are the engine's own ratings. What the vehicle around it can do depends on cab, bed, tire and drivetrain.

The Chevrolet 5.3L EcoTec3 V8 engine shown on its own against a dark background

In the Tahoe the 10-speed is the Hydra-Matic 10L80, and both full-size SUVs run a 3.23 final drive.

On the Silverado 1500, the front bucket seats and center console are only offered with a V8, so the interior you want can decide the engine. Otherwise the 40/20/40 split-bench is the standard seat across the line.

Specification	5.3L EcoTec3 V8
Engine code	L84
Displacement	5.3 liters
Cylinders	8
Horsepower	355 hp at 5,600 rpm
Torque	383 lb-ft at 4,100 rpm
Cylinder management	Dynamic Fuel Management
Idle system	Automatic Stop/Start
Transmission	10-speed automatic
Drivetrains	Rear-wheel drive and four-wheel drive
Fuel	Regular unleaded

Vehicles That Use the 5.3L

Three Chevrolet vehicles offer the 5.3L. Only on the pickup does it depend on which trim you are looking at.

Vehicle	Where the 5.3L sits	Drivetrains offered
Silverado 1500	Standard on LTZ and High Country. Available on Work Truck Double Cab and Crew Cab, Custom Trail Boss, LT, RST and LT Trail Boss	Rear-wheel drive and four-wheel drive
Tahoe	One of three engines across the range, alongside the 6.2L V8 and the 3.0L turbo-diesel	Rear-wheel drive and four-wheel drive
Suburban	One of three engines across the range, alongside the 6.2L V8 and the 3.0L turbo-diesel	Rear-wheel drive and four-wheel drive

Red, blue and white Chevrolet Silverado 1500 pickups parked side by side in front of snow-capped mountains

The three vehicles it goes into are not remotely alike. The Silverado 1500 is described below by body rather than by length, because it is built in three different cabs.

Vehicle	Size, seating and capacity
Silverado 1500	Regular Cab, Double Cab and Crew Cab bodies, with the Crew Cab built in a short bed and a standard bed. Seating is 3 in the Regular Cab and 6 in the Double Cab and Crew Cab, dropping to 5 when the front bucket seats are fitted.
Tahoe	211.3 inches long on a 120.9-inch wheelbase, with up to 122.7 cubic feet of cargo space, seating for 7, 8 or 9 depending on configuration, and a 24-gallon fuel tank.
Suburban	226.3 inches long on a 134.1-inch wheelbase, with 144.5 cubic feet of cargo room behind the first row, 93.8 behind the second and 41.5 behind the third.

A black Chevrolet Suburban parked beside open water

The Suburban runs the same engine in a body 15 inches longer than the Tahoe's.

Fuel Economy and Fuel Type

The 5.3L takes regular unleaded in all three vehicles. Ratings move with drivetrain, and on the pickup with cab, bed and tire package as well, so the Silverado row below carries spans rather than single numbers.

Vehicle	Rear-wheel drive (city / highway / combined)	Four-wheel drive (city / highway / combined)
Silverado 1500	16 / 20 to 21 / 17 to 18	15 to 16 / 18 to 20 / 16 to 17

The bottom of the four-wheel-drive span belongs to a mud-terrain tire build, which trades highway numbers for grip. The two SUVs are in the table below, beside the engines they are otherwise sold with.

How the 5.3L Compares With the Other Two SUV Engines

The 6.2L takes premium and the 3.0L takes diesel, so the pump price moves with the engine as well as the mileage.

SUV and drivetrain	5.3L V8 (regular)	6.2L V8 (premium)	3.0L Turbo-Diesel
Tahoe, rear-wheel drive	15 / 20 / 17	15 / 20 / 17	22 / 26 / 24
Tahoe, four-wheel drive	15 / 19 / 17	14 / 18 / 16	20 / 24 / 22
Suburban, rear-wheel drive	15 / 20 / 17	15 / 19 / 16	21 / 26 / 23
Suburban, four-wheel drive	14 / 19 / 16	14 / 18 / 16	20 / 24 / 22

A dark grey Chevrolet Tahoe seen from a front three-quarter angle

In a rear-wheel-drive Tahoe the two V8s carry identical ratings, and only one of them takes premium fuel. The diesel is ahead of both in every column, and on the highway it is ahead by at least five miles per gallon.

Can the 5.3L Run E85?

Some builds can. Two four-wheel-drive 5.3L Silverado 1500 configurations, the road-tire build and the mud-terrain build, are certified to run on gasoline or E85, and the EPA rates that flex-fuel configuration at 15 mpg city and 19 mpg highway. That is build-specific, not standard across the 5.3L, so check the window sticker on the truck in front of you before you plan around E85.

Towing and Payload

The 5.3L is rated to pull between 7,500 and 8,400 pounds in a Tahoe or Suburban. Drivetrain sets the exact figure, and each of these SUVs carries both a standard rating and a higher maximum rating. Curb weight sits in the table beside payload.

Configuration	Curb weight	Payload	Standard trailering	Maximum trailering
Tahoe, rear-wheel drive	5,509 lb	1,834 lb	7,900 lb	8,400 lb
Tahoe, four-wheel drive	5,705 lb	1,746 lb	7,700 lb	8,200 lb
Suburban, rear-wheel drive	5,680 lb	1,750 lb	7,700 lb	8,200 lb
Suburban, four-wheel drive	5,873 lb	1,759 lb	7,500 lb	8,000 lb

Does the Bigger Engine Pull More?

Not in the Tahoe. There the 5.3L carries the most weight of the three engines, and at the maximum rating it pulls the most as well.

Tahoe engine	Payload, rear-wheel drive	Payload, four-wheel drive	Standard trailering, rear / four-wheel drive	Maximum trailering, rear / four-wheel drive
5.3L V8	1,834 lb	1,746 lb	7,900 / 7,700 lb	8,400 / 8,200 lb
6.2L V8	1,671 lb	1,616 lb	7,700 / 7,600 lb	8,200 / 8,100 lb
3.0L Turbo-Diesel	1,717 lb	1,625 lb	8,200 / 8,000 lb	8,200 / 8,000 lb

A dark grey Chevrolet Silverado 1500 Trail Boss Crew Cab with red front tow hooks

Before any package is fitted the diesel is the strongest of the three, and adding the package does not change its rating. The 5.3L is rated below the diesel without the package and above it once the package is on the build. If you tow anywhere near the limit, the Max Trailering Package is the line on the build sheet to check.

Silverado 1500 Payload

On the Silverado 1500, payload swings by several hundred pounds across cab and bed combinations, so the figure worth having is the one tied to a specific build. These are the Crew Cab numbers for the 5.3L.

Silverado 1500 Crew Cab, 5.3L	Payload	With the Max Trailering Package
Rear-wheel drive, short bed	2,000 lb	2,100 lb
Four-wheel drive, short bed	1,990 lb	2,090 lb
Rear-wheel drive, standard bed	1,930 lb	2,030 lb
Four-wheel drive, standard bed	1,930 lb	2,030 lb

Lifted four-wheel-drive builds are rated lower: 1,930 pounds with the short bed and 1,870 with the standard one.

All four Silverado engines are rated in the four-wheel-drive Crew Cab short bed, so that is the fairest place to line them up.

Silverado 1500 Crew Cab engine	Payload, four-wheel drive short bed	Base curb weight across Crew Cab builds
2.7L TurboMax	2,020 lb	4,700 to 5,070 lb
5.3L V8	1,990 lb	4,860 to 5,190 lb
6.2L V8	1,880 lb	5,180 to 5,550 lb
Duramax 3.0L Turbo-Diesel	1,870 lb	5,050 to 5,710 lb

The heavier the engine, the less the truck carries, and the two columns beside each other show it, though they are measured differently: the payload figure is one configuration, the curb weights are ranges across whole Crew Cab builds. The turbo four carries the most, with the 5.3L 30 pounds behind it before the Max Trailering Package is taken into account. If your bed is full most days, read this table before you read the horsepower column.

The Engine Lineup Around It

These are the four engines the Silverado 1500 offers.

Engine	Horsepower	Torque	Transmission	Fuel
2.7L TurboMax	310 hp	430 lb-ft	8-speed automatic	Regular
5.3L EcoTec3 V8	355 hp	383 lb-ft	10-speed automatic	Regular
6.2L EcoTec3 V8	420 hp	460 lb-ft	10-speed automatic	Premium
Duramax 3.0L Turbo-Diesel	305 hp	495 lb-ft	10-speed automatic	Diesel

A blue Chevrolet Silverado 1500 ZR2 Crew Cab with red front tow hooks

The 6.2L makes the most horsepower and takes premium. The diesel out-torques all three.

Coverage and Upkeep

The 5.3L is covered by Chevrolet's standard powertrain terms: 5 years or 60,000 miles, whichever comes first. The longer 5-year, 100,000-mile powertrain term applies to the TurboMax and Duramax engines, not to this one.

Coverage	Term, whichever comes first
Powertrain components	5 years or 60,000 miles
Bumper-to-bumper, complete vehicle	3 years or 36,000 miles
Roadside assistance	5 years or 60,000 miles, with the powertrain term
Rust-through	6 years or 100,000 miles
Sheet-metal surface corrosion	3 years or 36,000 miles

Two people walking toward a silver Chevrolet Silverado 1500 parked outside a building at dusk

Dynamic Fuel Management and Automatic Stop/Start both depend on clean oil at the right level, so this is an engine to service on its oil interval rather than a few thousand miles past it. We can look up what your specific build is due for, and you can schedule Chevrolet service online.

Seeing One in Person

The 5.3L and the 2.7L TurboMax are the Silverado's two regular-fuel engines, and driving both back to back is the plainest way to choose between them.

If you would rather start online, our new Chevrolet listings show which trucks and SUVs are configured with the V8, and each listing carries the vehicle's own selling price.

Our Chevrolet specials change monthly, so see our new vehicle specials for the latest deals on trucks and SUVs. If the exact cab, bed and drivetrain combination you want is not listed, tell us what you are after with Find My Car and we will look for it.

A white Chevrolet Silverado 1500 ZR2 on a rocky trail in a green forest

Frequently Asked Questions

The towing table above gives the rated figure for each Tahoe and Suburban build. Which one applies to you depends on the drivetrain and on whether the build carries the standard or the maximum rating, so bring your trailer's loaded weight and we will check it against a specific vehicle on our new Chevrolet inventory listing.

No. It is rated on regular unleaded in all three vehicles that offer it.

In a Tahoe, the 5.3L does, in both drivetrains and at both the standard and the maximum rating. It carries more payload as well, because the 6.2L is the heavier engine before anything is loaded.

The Silverado 1500, the Tahoe and the Suburban. The trim availability differs on the pickup, and the table near the top of this page lists where it is standard and where it is an option.

L84. That code appears on order guides and window stickers, and it is the quickest way to confirm which engine a specific truck or SUV was built with.

Ed Martin Chevrolet Cadillac