I was just cleaning up my engine getting ready to put it back together (It's on a stand), and decided to knock out the big rear oil galley freeze plug (behind the cam) so that I could clean out the back part of the oil galley. Naturally I ruined the rearmost cam bearing in the process. Is it easy to put in new cam bearings or do I need to bring it to a machine shop? Is there some way I can fix the bearing because I didnt scratch the inside, I just knocked it out of its bore somewhat. I am really trying to avoid having to bring it to a machine shop because not only do I lack the use of a truck but I don't have much money left to spend. Also, how much do machine shops generally charge to put in new cam bearings? Any advice is greatly appreciated. -I just found a cam bearing installation tool for SB Chevys on Jeg's. Can I just buy this and new bearings and put them in? Or is there some machining required? Forgot to mention, I'm putting in a brand new cam.