i decided to take the head off the long block i bought off ebay a long time ago today just to see what it looked like inside the engine and all. and when i look at the head its got some crap in there like someone ran a lot of radiator stop leak or something. maybe they did it on purpose? this is probably the worse of all the cylinders and some it looks like they drilled it out a little. any ideas what happend? lol is this head even usable?