Water leak question

Two caveats.

If a bolt is leaking from the threads into the block, it may be possible that it is leaking into the oil pan. Keep a watch on oil for water/ coolant

Also there is one bolt (forget which one) that if you accidently get one in there that is too long, you can break through the block wall and even damage the cylinder skirt. Now you have coolant into the oil and an expensive fix