You have to remove 4 oil pan to timign cover bolts. the first two on each side on the front of the oil pan. If memory serves me correct, 2 are 1/2 inch and 2 are 3/8ths... You will see they go into the timing cover, and not the block. Make sure you use thread lock on the cam bolt when you reinstall it... If not, you could have it come loose on you, like it did me, and destroy the motor

Other then that, it's straight forward. If you haven't thought about it.. replace the timing chain.. If not the whole set, atleast the chain if it has slack in it.
Nick