Seized Budd lugnuts

Burn them off.

 

What I've done on regular 33mm nuts is take a plasma cutter and very carefully cut a notch on two of the eight sides directly across from each other. Cut as close to the threads as possible without hitting the threads. That weakened the nut enough that it flexed and let it spin loose. That of course was on a customer's truck that was still needing to be on the road. Could you just simply torch these off if its scrap? Maybe the wheels are still good?

 

I've seen shops bang on them back and forth with a hammer. Better yet, cut them off. Worst design ever!

 

So the nuts, not the outer studs? If it's the nuts, I take a chisel ( air chisel preferred) and open up 1 flat. ( or a "nut buster", if you have one that big) That usually frees up the nut.

 

Bigger impact

 

Heat red, throw a cup of water on it and if it won't come off with impact then you gonna have to cut it off. I do manifold studs same way sorta, weld a washer then a nut and pour water on and majority of the time they unscrew by hand without a wrench. You have to be quick red, water, and impact.