Machine Shop recommendation..L.A.
Now that I read one of your previous posts, I think I have an idea of what you are working with:
http://www.forabodiesonly.com/mopar/showthread.php?t=200097
Are you sure you need a full rebuild? What about just a hone?
What pistons are in the motor now? Need to roughly know the compression ratio.
If you have them out, maybe you can find a part number on them or some picture might help people on FABO identify them.