LC9 5.3L Engine Specs: Performance, Bore and Stroke, Cylinder ...
LC9 5.3L Engine Specs: Performance, Bore and Stroke, Cylinder Heads, Cam Specs and More. The LC9 engine is a 5.3L, Gen. 4, aluminum small block engine used in GM trucks and SUVs between 20072011. For marketing purposes, it was also known as the Vortec 5300. The engine specs and information listed here is for a stock LC9 engine.