mobile-menu-icon
GM Authority

GM 1.2 Liter Turbo I-3 LBP Engine

The LBP is a turbocharged 1.2-liter three-cylinder engine produced by General Motors for use in small vehicles.

GM RPO code: LBP
Displacement: 1.3 liters
Configuration & Cylinders: Inline 3 (I3)
Vehicle Engine Orientation: Transverse
Valve configuration: Dual Overhead Camshafts (DOHC)
Assembly site: TBD
Predecessor: LIH
Successor: None currently

Very little is currently known about the GM 1.2 liter turbocharged three-cylinder LBP engine. It’s based on the 1.2 liter turbocharged three-cylinder LIH engine, but designed for E85 fuel capability. The LBP engine was introduced in the 2025 Chevrolet Trax, the 2025 Chevy Trailblazer, the 2025 Buick Encore GX and the 2025 Buick Envista, but only in the U.S. market.

GM 1.2L Turbo I-3 LBP Engine Specs
Displacement: 1.2 liters
Configuration & Cylinders: Inline 3 (I3)
Vehicle Engine Orientation: Longitudinal or Transverse
Valve configuration: Dual Overhead Camshafts (DOHC)
Aspiration: turbocharged
Valves per cylinder: 4
Compression ratio: TBD
Assembly site: TBD
Valve lifters: TBD
Firing order: TBD
Bore x stroke: TBD
Fuel system: SIDI (Spark Ignited Direct Injection)
Fuel Type: TBD
Maximum Engine Speed: TBD
Emissions controls: TBD
Materials
Block: TBD
Cylinder head: TBD
Intake manifold: TBD
Exhaust manifold: TBD
Main bearing caps: TBD
Crankshaft: TBD
Camshaft: TBD
Connecting rods: TBD
Additional features: TBD
GM 1.2L Turbo I-3 LBP Engine Vehicle Applications
Model Year Make Model Transmission Power (hp / kW @ RPM) Torque (lb-ft / Nm @ RPM)
2025 and newer (U.S. only) Buick Encore GX GM Continuously Variable Transmission MRG (FWD only) 137 / 102 @ 5000 162 / 219 @ 2500
2025 and newer (U.S. only) Buick Envista GM 6-Speed Automatic Transmission MNH 137 / 102 @ 5000 162 / 219 @ 2500
2025 and newer (U.S. only) Chevrolet Trailblazer GM Continuously Variable Transmission MRG (FWD only) 137 / 102 @ 5000 162 / 219 @ 2500
2025 and newer (U.S. only) Chevrolet Trax GM 6-Speed Automatic Transmission MNH 137 / 102 @ 5000 162 / 219 @ 2500

Subscribe to GM Authority

For around-the-clock GM news coverage

We'll send you one email per day with the latest GM news. It's totally free.