If I'm not mistaken I think those heads call for an extra long bolt on each side so you'll be buying some type of head retainers. That being said, if you use studs and ever want to remove the heads in car, will they slide up those studs and clear your brakes,firewall and hood? Just something to consider.
I have never been able to slide my heads off the studs in my Demon. Everything is just too damn tight. In my case they are there for strength. Not convenience.