A modified internal combustion engine, commonly found in automotive applications, achieves a displacement of 383 cubic inches through an increase in the crankshaft’s stroke and often, a bore increase in the engine block. This displacement enhancement results in a larger volume for air and fuel mixture within the cylinders, leading to a more powerful combustion event. For instance, a Chevrolet 350 small-block engine can be transformed into this larger displacement configuration, yielding improved torque and horsepower.
The practice of increasing engine displacement offers several advantages. Enhanced torque, particularly at lower engine speeds, provides improved acceleration and pulling power. This modification is popular in applications where increased performance is desired without significantly altering the engine’s external dimensions. Historically, the pursuit of higher performance led engine builders to explore methods of increasing displacement within existing engine architectures.
