What is the smallest LS engine?

Could you please clarify for me what you mean by "LS engine"? Are you referring to a specific type of engine used in automotive applications, or is it a term related to cryptocurrency or finance that I am not familiar with? Assuming you're referring to automotive engines, the "LS" designation is often associated with a family of engines produced by General Motors. However, without more context, it's difficult to definitively state which is the smallest LS engine, as there have been multiple iterations and variations over the years. Could you provide me with more information about the specific application or context in which you're interested in the smallest LS engine?