my 360 heads were stolen by machine shop

i bought it from a friend that took it to machine shop... i was with him when he dropped it off and it was clearly 596 heads.... he picked the motor up and painted it.. put on engine stand. he is a good friend and very trustworthy.. so i know he didnt remove the heads...
Seems to me if he's a good friend you both should go to the shop and discuss it, that will be the defining moment. Friend or no friend before I'd blame the shop or defame them I'd want to hear my friend defend me and say what heads were on that motor.