If you have to replace the cam bearings, and you've never done it before, it might be better to have it done. You'll need special tools to drive the old bearings out and the new ones in. You need a soft plug driver to put the cam plug in the back. The tools would problee' cost more than the labor. If you want to try it on your own, you could probably rent or borrow the tools from a parts house. They can also show you how to install the new bearings (They need to line up right with the oil holes in the block). I like to align the oil hole in the bearing with the oil hole in the block (main bearing journals) to confirm the bearings are in right.