Dominik,  
I apologoze for being so slow to reply to your post.  Thank you for your interest.  I did not measure the lift of the lobes with calipers.  But I did watch the rocker arms and feel them with my hand as I turned the engine over.  Both intake and exhaust valves looked to move normally after the lifters were replaced and adjusted correctly.  I have had a vetern mechanic who also taught automotive arts in high school, two expirienced mechanics and a retired jet mechanic look at the head, valve and piston.  All say they have not seen anything quite like this.  I have given up.  
Financially a crate V8 engine will probably be the best choice.  Our teenage boys think that this is a great idea, but I like the simplicity of the old 6 cylinder Chevy.  
Let me know if any one in Gemmany might need this old 6 cylinder engine for their Cobra.  I would be glad to send the pieces to them.   

  I would even be more glad to give it to someone to put in a Cheetah 
 
My great grandfather came from a small town not far from Stutgart.  Several of his borthers and nephews followed him.  The last German-born Yeager who I personally knew, was Wilhem Yeager.  He died about 10 years ago.  He used to work with us when we filled Uncle Frank's silo when I was a boy.  He felt that he was the only one who could make the mud right to seal the doors.  Some of Dad's family still comminicate with the Yeager's in Germany but I do not know them.    
Rick