Hey guys new to the site, want to say Hello, I need some help, have a 2000 tj with a cracked head, ordered a head off of ebay that was supposed to be a 2004 head but received a 0630 head, everything looks like it will swap, it has no bosses for coil packs, no big deal, what I'm worried about is the water ports on the head I received, do I need to plug them to make it like the tj head or will the head gasket take care of that, the numbers on the head are NH3, 0630, 99, 022. Anybody have any idea what head this is, what it came off off? Fixing to have surgery on shoulder in two weeks, need to get this thing back together, any help would be appreciated. Dan.