I have these left over from my build. I have 4 boxes of (new as far as I can tell) 4 pushrods each. PR-323 is a single pushrod and the PR-323S is a box of four according the the Elgin website http://catalog.elginind.com/app/Engi...8&cat=Push+Rod
This is the description "D Series; From 1968, 9.315 Length". The first person who wants them can have them for the cost of shipping. I have no idea what these are worth, but I have no use for them, so if someone wants them, just PM me and let me know.