This should be good.
Why would I not want to know (already know). Is there something wrong with that particular place? I guess to be more technical, what do you mean by "made?"
Head, cylinder block, pistons, cams, rods, etc., are made onsite at the assembly plant or they are shipped into the assembly plant from different locations; throughout the world.
So, I ask, what is your definition of made?
If you mean manufacturing site, which I immediately think of, then that is one of the 50 states.