Yenko take out motors

[69rsss350]

Does anyone have any info on what became of the motors from the 67/68 Camaros and 69 Novas that were transplanted to 427's? Would there be info on them somewhere?. Wouldn't they have the original VINs from the soon to be Yenko cars on the blocks? Also, how did Yenko mark the transplanted 427 motors denoting them as Yenko? I must assume there was some way to tell if your 67/68 Yenko Camaro or 69 Yenko Nova has the motor Yenko put in it. I apologize if these questions seem silly, but this inquiring mind wants to know.