Depending on your shop and situation, it might be easier to push the car a few feet to turn the engine. Remember to remove the spark plugs, and unhook the coil wire from the distributor for good measure. If it doesn't turn, search on 'siezed engine' or similar as there was a discussion recently on how to free same.
------------------
-- Dave
Pics of my '73 project here:
http://members.tripod.com/mike4g/dds73_b4pics.htm