[mr0077]

Chuck,
if you don't plan to reuse them, and you have an arc welder, weld a short piece (1 1/2 inch or so) of same sized all-thread to the end of each of the alignment dowels, slide a short piece of pipe over it for a spacer, leaving 3/4" of all-thread exposed. Put a washer and nut on the all-thread. Tightening the nut will pull it out of the block.