The oil capacity for a 350 cubic inch Chevrolet small-block engine varies slightly depending on the year of manufacture, the specific oil filter used, and whether it's a car or truck application. However, a generally accepted range is
5 to 6 quarts.
To be absolutely sure, always consult your owner's manual or a reliable service manual specific to your engine's year and model. Checking the dipstick after adding oil is crucial to avoid overfilling.