A Motors or Chilton manual that covers the year of your engine will also give you enough info for reassembly.
You should be able to reuse the bolts in question without a problem. It's the late model stuff with "torque to yield" bolts that need to be replaced everytime.
How much was taken off the block and/or head?
If it was just a re-surfacing of a few thousands, don't worry about it. If they took alot off, say .030 or more, then shimming the rocker shaft stands a similar amount would be a good idea. Never heard of needing to "shim" the head bolts.
