Mounting and performance is the same as every other 440, the only thing I have ever heard diffrent is thiner cylinder walls,so If you have to do an over bore know or later you can't go quite as far over as the early model 440's.
The MTYH of thinner cylinders walls was debunked years ago by AndyF , if anything the later blocks are thicker and more uniform than the earlier blocks. What is different is the mix of metal is a little softer , which may not be a bad thing .