lq4 engine

About Company

The LQ4 engine is a 6.0-liter V8 powerhouse designed by General Motors as part of the Gen III LS engine family. Produced between 1999 and 2007, the LQ4 engine was primarily used in heavy-duty trucks such as the Chevrolet Silverado HD, GMC Sierra HD, and various SUVs. Known for its impressive reliability, strength, and performance, the LQ4 engine features a cast-iron block paired with aluminum heads, creating the perfect combination of durability and efficiency. With a stock output of around 300 to 360 horsepower and 360 to 380 lb-ft of torque, this engine provides plenty of power for both towing and performance applications. Its 364 cubic-inch displacement makes it a popular choice for enthusiasts seeking a budget-friendly alternative to aluminum LS engines. The LQ4 engine is also highly regarded for its adaptability in LS swap projects, fitting easily into older cars, hot rods, and muscle builds. Due to its robust design and affordable availability, the LQ4 engine remains a top choice among performance builders who want the power and reliability of an LS-based engine without the high price tag.