Which heads on 1994 magnum block

What is the issues with the skirt issues? I haven't heard anything about them. I bought the short block off my friend that built it. He was switching to a gen3 hemi. But any way the KB107 have seen a bunch of 6500/7000 rpm shifts and a few 7500. Lol also I thought the KB were soposed to be close to stock Weight. Unless I was told wrong..
Maybe I got told wrong. Guy that told me didn't do much with mopars, mainly chevys. I know that the top ring has to have more clearance. Did they give you a zero deck height or were they sticking out a bit?