Originally Posted by knova70

I am look ing for the part # on the right head studs that you should use on a GM aluminum BowTie Block with standand heads,the heads are AFR 220's they are aluminum,but use the same stamdand bolt layout as a stock head,I looked on arp site and they have so many different studs its hard to get the right choice,I know the block takes a special stud and the threads are 1 1/8 long and the bottom of the stud is rounded with a nipple,I'm sure somebody knows what this block takes,the main studs are the same as the head studs should be,it came with the main studs already,just need the part # on the main studs from ARP,thanks everybody,this is holding me up on getting this together,