Well let me start by saying I dont know to much about moters. Im rebuilding my banshee frame up and trying to get more power, so I got a set of jugs that are ported by trinity (stage 3) and the pistons that he was runing with it that are 68.92mm. I got home and put it all together and theres a problem, the f**king pistons are hitting the head. I bought the banshee off some kid and dont know if the rod is stock or what, but when you look at the intake you can see the ports dont line up like they should, the piston go's to far down and up. So how do I know if I have a stock size rod and is there any way to get some sort of spacer or anything to fix this problem? Here are some pics of what Im talking about.