This automotive performance upgrade centers on increasing the internal displacement of a 4.6-liter, 4-valve engine. This is achieved through a combination of components designed to lengthen the stroke of the engine’s pistons. Such modifications typically involve a new crankshaft, connecting rods, and pistons specifically engineered for the increased stroke length. The result is a larger swept volume within the cylinders during each engine cycle.
Implementing this modification is often undertaken to enhance an engine’s torque output, particularly at lower engine speeds. The increased displacement facilitates a greater amount of air and fuel mixture to be drawn into the cylinders, leading to a more powerful combustion event. This yields improved acceleration and overall engine responsiveness. Historically, such modifications have been popular within the automotive performance and racing communities, seeking to extract maximum power from a given engine platform.