Manual

Overview & Design Features The GMC LE3 engine, commonly known within General Motors’ EcoTec3 family as the L84, represents a modern iteration of the brand’s long-standing small-block V8 architecture. Introduced for the 2021 model year, this naturally aspirated, 6.2-liter (6162 cc) V8 powerplant is a robust and performance-oriented engine, designed to deliver significant power and […]

Overview & Design Features The GMC LE4 designation typically refers to a specific application of General Motors’ 2.4-liter (2384cc) Ecotec inline-four engine, a powerplant predominantly found in various GMC models. Part of the robust Ecotec family, the LE4 variant was engineered for a balance of fuel efficiency, emissions compliance, and adequate power delivery, making it […]

Overview & Design Features The GMC LE8 engine, widely recognized as the Vortec 5700 L31, is a naturally aspirated 5.7-liter (350 cubic inch) V8 gasoline engine. Manufactured by General Motors, it represents the final evolution of the small-block Gen I Chevrolet V8 architecture before the widespread adoption of the Gen III LS series. Introduced in […]

Overview & Design Features The GMC LF9 engine is a naturally aspirated 6.2-liter (6162 cc) V8 powerplant, part of General Motors’ Gen IV small-block engine family. Engineered for robust performance and towing capabilities, this engine was primarily deployed in large SUVs and pickup trucks requiring substantial power and torque. The LF9 variant is specifically distinguished […]

Overview & Design Features The GMC LFW is a 3.6-liter (3564 cc) naturally aspirated V6 gasoline engine, a prominent member of General Motors’ High Feature (HFV6) engine family. Introduced as a refined successor, it builds upon the proven architecture of its predecessors while incorporating advancements aimed at improving efficiency, emissions, and performance. Its development lineage […]

Overview & Design Features The GMC LFX is a member of General Motors’ High Feature V6 engine family, specifically a third-generation evolution of this architecture. Introduced in 2012, this 3.6-liter (3564 cc) naturally aspirated V6 engine was engineered to deliver a significant increase in power and fuel efficiency compared to its predecessors, the LLT and […]

Overview & Design Features The GMC LGX is a prominent member of General Motors’ third-generation High Feature V6 engine family, succeeding the LFX variant. Manufactured by General Motors, this 3.6-liter (3649 cc) naturally aspirated V6 engine was introduced in 2016, designed to offer a blend of robust performance, enhanced fuel efficiency, and reduced emissions across […]

Overview & Design Features The GMC LGZ is a turbocharged 2.7-liter (2727 cc) inline four-cylinder gasoline engine produced by General Motors, primarily for its truck and SUV lines under the GMC and Chevrolet brands. Introduced initially in 2019, the LGZ variant specifically refers to the updated, higher-torque version released for the 2022 model year. This […]

Overview & Design Features The GMC LH6 is a 5.3-liter (325 cubic inch) V8 engine, part of General Motors’ renowned Gen IV Small Block engine family. Introduced in 2005, the LH6 stands out as one of the first aluminum-block 5.3L V8s to feature Active Fuel Management (AFM), also known as Displacement on Demand (DoD). This […]

Overview & Design Features The GMC LH8 is a specific variant of the General Motors Gen IV small-block V8 engine family, known for its robust construction and V8 performance in mid-size applications. Manufactured by General Motors, this naturally aspirated engine features a displacement of 5.3 liters (325 cubic inches) and utilizes a conventional 90-degree V8 […]