A modification to the internal combustion engine, specifically the Ford 4.6L modular engine, involves increasing the stroke length of the crankshaft. This modification, often achieved through the installation of aftermarket components, aims to enhance the engine’s displacement. The result is generally a noticeable increase in the power output of the engine, as demonstrated by higher horsepower figures on a dynamometer. The increased stroke dictates that the pistons travel a longer distance in each cycle, drawing more air and fuel into the cylinder.
Modifying an engine in this way offers performance enhancements by delivering greater torque, especially at lower engine speeds. This is beneficial for applications requiring strong acceleration and pulling power. The increased displacement contributes to a more responsive and powerful driving experience. Historically, this modification has been popular among enthusiasts seeking to extract more performance from their engines without resorting to forced induction methods like turbocharging or supercharging. It is seen as a reliable method of achieving improved power output.