The GM L3B 2.7L inline-4 may sound less than ideal for trucks like the Chevy Silverado and GMC Sierra 1500. However, the turbo engine makes up to 325 horsepower and 430 lb-ft and leaves plenty of room for more with tuning and basic mods. Check out our 5 most common L3B engine problems article or our guide on deleting/disabling AFM. We have tons of additional helpful, knowledgeable content coming soon for the L3B 2.7L turbo engine.
The 2.7L L3B turbo engine debuted in 2019 as the base engine in Chevrolet Silverado 1500 and GMC Sierra. Although the engine was specifically designed as a truck engine, it has been used in other GM vehicles. It replaced the 4.3L V6 LV3 engine and was recently updated for the 2022 model year refresh to…
AFM or active fuel management is a GM/Chevy technology meant to improve gas mileage. AFM works by deactivating half of the engines cylinders under certain circumstances to reduce fuel usage. It essentially turns your V8 engine into a V4 which saves fuel. GM claims fuel improvements ranging from 5%-15% depending on the engine. So why…
