It is the link image to an article I saw today, and the article doesn't even have the picture, so there is no caption or any information that I saw. Reverse GIS came up empty for me, so I'm assuming it is a stock image. The engine is obviously huge, and appears to have 7 main bearings, making it an I6 or possibly V12. My thought is that it is a big diesel, either for a semi truck or heavy equipment. Unfortunately I don't have anything beyond the picture, so I can't verify if anyone actually has the correct answer.