no..they are far different animals...the MIM has a narrower string spacing thus smaller saddles and is made of cheaper metal. then comes the trem block...the MIM ones are a joke to be honest, they are tiny little thin blocks and the US vintage ones and reissue ones are much larger and thicker which helps a bunch with sustain. also, you can't swap from one to the other since the 6 mounting screws are the same width as the string spacing so a MIM trem won't work on a US body and a US trem won't work on a MIM body...unless you fill the mounting holes and redrill them that is.
-Mike