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 engine 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.
