I've been digging and I found the ProComps and they are wicked cheap but they don't appear to make a set for the 2004+ blocks. I'm just getting the studs for a little extra insurance for when I replace my head gaskets with LS9's so if there is another brand out there for <$250 I'm open to it.

 

I see them in the forsale section all the time. You might luckup and find a set there