Yenko cast ZL1 engines?

[Jack_Tar]

Does anyone know about these motors? These were not GM motors because YENKO is in the casting. What are the details?

http://www.firstnoel.biz/programs/carlotpagesold.cgi?19691081142_92

[PeteLeathersac]

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..

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~ Pete

http://i121.photobucket.com/albums/o229/killr68/scan0005-4.jpg