It is for good reason
that virtually every top professional engine builder relies on ARP Pro Series
head studs for their all-out competition powerplants. Simply stated, there’s
not a better stud setup on the market today. ARP uses a premium grade 8740 alloy
that is rated far superior to ‘aircraft’ quality. Then, each stud is placed
vertically in special racks and precisely heat-treated to 200,000 psi. ARP
studs are thread rolled after heat-treat, which gives them about 1000%
(that’s ten times) better fatigue strength than those studs that are threaded
prior to heat-treat (a very common industry practice). You won’t find a
better quality stud on the market from any other source.

It is for good reason that virtually every top professional engine builder
relies on ARP Pro Series head studs for their all-out competition
powerplants
Simply stated, there’s not a better stud setup on the market today
ARP uses a premium grade 8740 alloy that is rated far superior to
“aircraft” quality
Then, each stud is placed vertically in special racks and precisely
heat-treated to 200,000 psi
ARP studs are thread rolled after heat-treat, which gives them about 1000%
(that’s ten times) better fatigue strength than those studs that are threaded
prior to heat-treat (a very common industry practice)
You won’t find a better quality stud on the market from any other
source