The 2.7-liter V6 General Motors L3B engine has been produced at the Tennessee plant since 2018 and is installed in rear-wheel drive or all-wheel drive models such as the Cadillac CT4 or Chevrolet and GMC pickups. The modification of this motor, derated to 237 hp / 353 Nm, is known under the index L2R.
High Feature family: L3B, LP9, LF1, LFX, LFY, LGX, LLT, LY7.
Specifications
| Production years | since 2018 |
| Displacement, cc | 2727 |
| Fuel system | direct injection |
| Power output, hp | 310 – 325 |
| Torque output, Nm | 472 – 583 |
| Cylinder block | aluminum V6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 92.25 |
| Piston stroke, mm | 102 |
| Compression ratio | 10.0 |
| Features | AFM, SCS |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | Dual VVT |
| Turbocharging | BorgWarner B03 |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.7 |
| Fuel type | petrol |
| Euro standards | EURO 6 |
| Fuel consumption, L/100 km (for Cadillac CT4-V 2020) — city — highway — combined |
11.8 8.1 10.2 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 165 |
The engine was installed on:
- Cadillac CT4 I (A2SL) since 2019;
- Chevrolet Colorado 3 (GMT31XX-2) since 2023;
- Chevrolet Silverado 4 (GMT1RC) since 2018;
- GMC Canyon 3 (GMT31XX-2) since 2023;
- GMC Sierra 5 (GMT1RG) since 2018.
Disadvantages of the GM L3B engine
- The engines of the first year of production came under recall, they changed the wiring harness.
- This engine has only direct injection and suffers from carbon deposits on the intake valves.
- Fuel injectors, as well as injection pumps, are very sensitive to the quality of gasoline here.
- And there are also complaints about malfunctions in the system for deactivating some of the AFM cylinders.
Frequently asked questions about the GM L3B
How much power does the GM L3B make?
The GM L3B develops 310 - 325 hp and 472 - 583 Nm of torque.
How much oil does the GM L3B take and which one?
Engine oil capacity: 5.7 liters. Recommended oil: 5W-30.
Does the GM L3B have a timing belt or chain?
The GM L3B uses a timing chain.
Is the GM L3B turbocharged?
Yes, the GM L3B is turbocharged (BorgWarner B03).
Does the GM L3B need valve clearance adjustment?
No, the GM L3B has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the GM L3B last?
The typical lifespan of the GM L3B is ~250 000 km with proper maintenance.
What is the fuel consumption of the GM L3B?
Cadillac CT4-V 2020: city 11.8, highway 8.1, combined 10.2 L/100 km.
What cars was the GM L3B installed on?
Cadillac CT4 I (A2SL) since 2019; Chevrolet Colorado 3 (GMT31XX-2) since 2023; Chevrolet Silverado 4 (GMT1RC) since 2018; GMC Canyon 3 (GMT31XX-2) since 2023; GMC Sierra 5 (GMT1RG) since 2018.
What are the common problems of the GM L3B?
The engines of the first year of production came under recall, they changed the wiring harness. This engine has only direct injection and suffers from carbon deposits on the intake valves. All known problems.
