The L3B is a 2.7-liter, inline four-cylinder gasoline engine produced by General Motors for use in trucks and SUVs. The engine was launched on the 2019 Silverado 1500 and 2019 Sierra 1500. This page displays news, pictures, videos, reviews, gossip and more about the GM 2.7L I-4 Turbo L3B engine.
High-output engine is optional on WT and LT.
Making the leap from the Sierra and Silverado.
40,000 miles longer than previously.
Extended an extra 40,000 miles.
The torque monster gets a new name.
The torque monster approaches.
Units previously on hold as EPA finalized MPG figures.
The most obvious choices are large crossovers and full-size SUVs.
It’s not as far-fetched as you might think.
Engineering highlights and a towing test.
Impressive gains, natively tuned.
Very cold weather could affect the engine.
Issue presented when driving below 0 degrees Fahrenheit.
The noise is the result of balance shaft gear-to-gear interactions.
Affecting 2022 and 2023 model-year vehicles.
Affecting Cadillac, Chevy, and GMC models.
An unusual setup for GM.
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