There's at least 3 different Yenko castings and not all were fully machined including some without finished cooling passages..
Some have YENKO in the casting as your linked example also others cast w/ the Yenko Crest..
Google or search this site to learn more as we've looked at lots of different examples here in the past..
[img]<<GRAEMLIN_URL>>/beers.gif[/img]
~ Pete
