What's the difference in head studs?

[043504x4]

What is the difference in Head studs out there? I have heard of H-11's, ARP's, and even read on someones bio here that they had A1 studs? What is the difference in these studs (material, make, strength) and what is the cost difference?

[alwil]

I think H-11 are stronger but I am not totally sure,I have ARP and they do what I need them to do.

[Lubbockguy1979]

The arps are cheaper that the h-11 most have pointed to that as the selling point of the two....

[dhanna6powerstroke]

The ARP's are rated at 220,000 PSI tensile strength and the H-11's are rated at 240,000 PSI tensile strength. The H-11's are quite a bit more too.

[03f250stroke]

what he said. my buddy has h-11s and i have arps. imo its the same, def an upgrade over stock.

for the extra money i dont think its really worth it. you read more guys running arps then h-11s