I am currently in the process of changing the cylinder head (because the old one cracked, which I am told is a common problem) and I need to change the engine fluid. I have a repair manual, but it only gives a small blurb as to where the block drain is. I can't find it just by their description of "under the exhaust manifold". Anybody have any suggestions? Could I just remove the lowest outlet on the block and it would all drain out? Where is that damn plug?