valve covers can leak also, i use felpros with new grommets.
the whole deal is much easier to re gasket engine out, bust your crank bolt free before the engine comes out. in case you need to red neck starter it off.
and you get to clean it up real good and paint it if you want.
good time to install headers or a cam or new springs rockers and so on while it out too.
with i had more time with mine out, i would have cleaned and painted the engine bay up.
and once the harness is off the top of the engine its just nuts and bolts like any old school engine.
