Clearance for engine movement

The distance is about 10mm
I have two questions
When the engine is under load what direction will the engine move? If it rotates towards the drivers side I suspect this will hit. If it rotates towards the passenger side it should not be a problem.
What is this mounting bolt used for? Any problems just machining it off of the block?
I have some heavy duty rubber that I could put in there to cushion the contact but I really don't like that Idea. The mounting point in the car is pretty much immovable without major modifications to the chassis. I can move the engine back about 3/4" to clear this but this makes the headers fitment a major hassle because of the cars foot boxes.
Any advice is appreciated.
Here is what they look like.

I found these mounts, they are not urethane but should sufficiently limit movement.
http://www.mitymounts.com/chrysler.htm
Last edited by debreshnev; Aug 20, 2011 at 06:20 PM.
The motor well try to rotate (facing it from the front) Counter-clockwise. The driver side tends to try to ride upward and over to the passenger side while the passenger side will dip a bit. It should not really move too much unless the mounts are really old.






