Good find... Anytime you can find one that some other poor soul had to do the BHG with is a good deal,

Especially if they were kind enought to do the mhg with ARPs... Now, to be sure they ARE ARPs, I would pull the valve cover off one side and see... If it's a 10mm hexhead, then they are stock bolts... If its a 12point 1/2 inch then it's an ARP...
Good luck with the car... Now join SupraForums, if you havent already and let us drop knowledge on ya...