للبيع ARP 154-4105 Factory heads head stud kit Black for FORD Flathead 1938-1948 في الإمارات, دبيإعلان #102923

ARP studs are thread rolled after heat-treat, which gives them about 2000% (that’s twenty times) better fatigue strength than those studs that are threaded prior to heat-treat. It costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.