GM 6.0L Vortec L96 V-8

General Motor's 6.0L V-8, or Vortec 6000, was the gas engine option of choice in heavy duty applications that include the 2010 to 2019 Chevrolet Silverado and GMC Sierra 2500/3500. While the engine produces much less power than the Sierra/Silverado 1500's high compression 6.2L V-8, the 6.0L is better suited for heavy truck applications as a result of its mild compression ratio and broad, flat torque curve. It's smaller displacement and lower output ratings also help to reduce fuel consumption and improve reliability.

At 364 cubic inches of displacement, the engine is rated at a respectable 360 peak horsepower and 380 lb-ft peak torque. More importantly, the engine features a relatively broad, flat torque curve and a linear horsepower curve that grows sharply. In addition to Chevrolet Silverado and GMC Sierra 2500/3500 pickup trucks, the 6.0L has been offered in the Suburban 2500, Yukon XL, Express, Savana, and all chassis cab trucks. All 6.0L Vortec engines are mated to GM's 6L90 automatic transmission.

The 6.0L Vortec features unique high flow cylinder heads with cathedral shaped intake ports and D shaped exhaust ports. Its sister engine is the 6.0L LC8, which features the same basic engine structure but has been engineered to run on compressed natural gas (CNG).

6.0L Vortec V-8 Engine Specs

Engine:

General Motors 6.0L Vortec V-8 (Vortec 6000)

RPO Code:

L96

VIN Code:

G (8th digit of VIN)

Type:

Generation IV small block V-8

Applications/Production Years:

2010 - 2019 GMC Sierra 2500 HD, 3500 HD
2010 - 2019 Chevrolet Silverado 2500 HD, 3500 HD
2010 - 2013 GMC Yukon XL
2010 - 2013 Chevrolet Suburban 2500
2016 - 2019 Chevrolet Suburban 3500 HD
2010 - 2020 Chevrolet Express 2500, 3500, 4500
2010 - 2020 GMC Savana 2500, 3500, 4500

Displacement:

363.92 CID (364 CID nominal), 5.96 liters (6.0 liters nominal)

Assembly Plants:

Romulus Powertrain Plant, Romulus, Michigan
St. Catherines Engine Plant, St. Catherines, Ontario, Canada
General Motors Silao Plant, Silao, Mexico

Bore:

4.00 inches (101.60 mm)

Stroke:

3.62 inches (91.95 mm)

Bore/Stroke Ratio:

1.10 (oversquare)

Compression Ratio:

9.7 : 1

Firing Order:

1 - 8 - 7 - 2 - 6 - 5 - 4 - 3

Engine Block Material:

Cast iron

Cylinder Head Material:

Cast aluminum alloy

Fuel System:

Sequential multi-port fuel injection, returnless fuel system

Aspiration:

Naturally aspirated

Ignition:

Individual coil-near-plug, self-cleaning iridium tip spark plugs

Valvetrain:

Overhead valve (OHV), 2 valves per cylinder
Standard pushrod V-8 with hollow steel camshaft
Variable valve timing (VVT)
Hydraulic roller lifters

Engine Oil Capacity:

6.0 qts w/ filter change

Lube Oil Filter P/N:

ACDelco PF48 (DuraGuard)
ACDelco PF48E (Professional)
ACDelco UPF48R (UltraGuard Gold)

Fuel:

Regular unleaded gasoline, E85 Flex Fuel compatible

Peak Horsepower:

360 hp @ 5,400 rpm

Peak Torque:

380 hp @ 4,200 rpm

Governed Speed:

6,000 rpm

Emissions Equipment:

Catalytic converter, positive crankcase ventilation (PCV)

Engine Dimensions:

Length:

28.97 in

Width:

22.64 in

Height:

31.81

6.0L Vortec L96 Horsepower and Torque Curve

6.0 vortec V-8 horsepower and torque curve chart

6.0L Vortec L96 Horsepower and Torque Curves
Source: gmpowertrain.com

Though the 6.0L Vortec may be comparatively lacking in overall horsepower and torque, it exhibits a relatively flat torque curve (although peak torque is produced unfavorably high in the powerband) and a steady, sharp climbing horsepower curve. Torque remains reasonable as the engine approaches its 6,000 RPM redline.

6.0L Vortec vs 6.6L Duramax

Model Year

6.0L Vortec Horsepower & Torque

6.6L Duramax Horsepower & Torque

2010

360 hp @ 5,400 rpm

380 hp @ 4,200 rpm

365 hp @ 3,100 rpm

660 lb-ft @ 1,800 rpm

2011 - 2016

397 hp @ 3,000 rpm

765 lb-ft @ 1,600 rpm

2017 - 2019

445 hp @ 2,800 rpm

910 lb-ft @ 1,600 rpm

The 6.0L Vortec gasoline engine has been offered alongside the 6.6L Duramax diesel since the 2010 model year. While the Duramax displays far superior performance characteristics, the 6.0L Vortec is an economical choice for buyers who require a truck with a high GVWR but aren't able to justify the additional cost of the diesel platform and/or will not utilize the diesel to its full potential. After all, the cost of ownership can prove considerably higher with modern, emissions controlled diesel engines. For heavy towing needs, there remains no alternative to the Duramax's high torque rating and favorable fuel economy under rigorous conditions.