Well apearently I just suck. Here's what I tried today I got some dry ice and put the pins under is with some schnapps that was nasty as could be and I wan't gonna drink it anyway. then I put that in the freezer for insulation. I put the oven at 200 first and put the rods in that and left everything for a good 30 to 45 minutes then pulled one of each out and tried to assemble it to the piston. It worked a little better than before with just the freezer but it still wouldn't go in. So next I upped the oven to 300 and left it for about the same time until the house started to smell like hot oil then pulled one of each out again which the pin I had to bust out of the frozen liquer it was so cold and tried to put them together but unfortunately I got the same results so evedently I don't posses the equiptment or skills to do this my self. I guess I'll have to find some one who can mount them around here and let them do it. Not all was lost though in the end I still had a big block of dry ice to play with so I put a bunch of water on it and let the fog reign over the kitchen simblizing my disappointment in the failed expeirements. Thanks to everyone for your input. Sorry I couldn't post better results for everyone to learn from.

Okay, new thought just acurred to me. The pistons I got came with pins obviousely but it didn't say what diameter the pins were. So my thinking is, would it be possible that the pins that came with them were to large for the rods? and if so what size difference should there be between the two? If the pins were say 1" diameter what diameter would the rod end need to be? I would assume a few 1000ths smaller but don't know for sure.