Do yourself a favor and buy a degree tool to make sure you are doing exactly 90 degree's per turn when you torque the head bolts upon reinstall. It gets a real workout in, and trying to make sure you did 90 degree's at the same time can be tricky. Its not as easy as it sounds and you'll understand when you get to it.
So do yourself a favor and get a tool that shows the degree's as I did:
If you feel up to the front timing cover, its well worth it to avoid leaks. No tool technically needed. Put a breaker bar under the chassis frame and spin the starter ONCE and it should pop it loose. Worked great for me.
Oh and if you feel like it too -- rattle can the exhaust manifolds. Mine are still looking great after 3 years
Cheap and easy to make it bay look a little less aged.