The amount of oil a 383 engine needs depends on the specific engine and oil pan capacity. There's no single answer. However, a typical 383 small-block Chevrolet engine will hold between 5 and 7 quarts of oil.
Always check your owner's manual or a reputable service manual specific to your 383 engine. This will give you the precise amount recommended by the manufacturer. Using the wrong amount of oil can damage your engine.
