Man, murphey certainly loves to bother me :P I'm trying to install my flexplate onto my 355 so I can break it in tommorow, but when I stick the flex plate bolts in, they hit the back of the block! I just pulled these bolts out of this engine maybe a month ago, and they fit real good then... The engine has been sitting on an engine stand, and has not been dropped or anything. I never touched the lower rotating assembly, just put a new cam in, and valve seals. Any ideas?