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The 6.2-liter small-block V8 GM LS3 engine gained notoriety for its unique combination of power, dependability, and contemporary efficiency. Factory-rated around 430 horsepower and 424 lb-ft of torque in many applications, it delivers significant performance while remaining street-friendly. Featuring an aluminium block and heads, the LS3 features a single cam-in-block arrangement with hydraulic roller lifters, keeping the classic pushrod simplicity that GM small-blocks are known for.