Looking to identify an engine block casting of 3835335. Some sources state that this is a 1942-49 235 number, while at least one source states that it is a 216. Leaning towards the 235 as at least one reference is from a paper copy of a Chevrolet manual.
Keep in mind a casting number is not a part number A casting is pre-machined shape of metal A part has been prepared post casting and is ready to install on the vehicle In a few rare parts the two can be the same But that would even preclude painting
Often for simple things the part number will be one off from the casting number Sometimes when looking in parts books the casting number will be listed in the part description to help identify a part I have seen instances where a casting is machined differently and can be found in 4 different part numbers
Engine heads were definitely machines different ways for different engines But blocks I haven’t come across one but it could be possible Maybe that is why the casting number can show up as multiple engines?