There's some debate about that since the magnums use TTY head bolts...I say no, others say yes...the new bolts for magnum heads are only $35 a set...but I'm not going to argue that **** again...especially online. Do the research, make your choice.
I can hack $35 for head bolts, no problem. At least it feels like a much better value than $32 for exhaust manifold bolts.
Some really good deals on eBay for Magnum heads; better than I can do at the junkyard - and I can always rip the rockers and pushrods out of a couple of 3.9s, which are ever more plentiful.