Changing engine mounts with engine installed

On a side note, don't be afraid to "make" special tools. I've had a number of wrenches over the years, one, a cut apart and re-welded offset 13/16 box to change plugs in a header equipped 396. I've several that are bent AND SEVERAL WERE DONE with nothing more than a good propane torch, vise, and hammer. Same thing with sockets. I've cut a few off to make a shortie socket. Of course you have to find one that has the nut flats/ splines deep enough first. Use an abrasive saw