Used by top professional engine builders in all parts of the country. Studs make gasket and cylinder head alignment a snap. All ARP studs are heat treated and feature rolled threads. 8740 alloy is rated better than aircraft quality. No better cylinder head studs available at any cost. WARNING: Cancer and Reproductive Harm. PerformanceParts is an authorized reseller of ARP. All items will be declared as actual value, we do not mark as gift or at a reduced value. Some items cannot be combined due to size or weight. Items must be in the original packaging. For your protection, we recommend insuring the package for the full value. Please provide pictures if possible (for both the item and the packaging). If you have any questions or concerns regarding the item, please contact our customer service department. To return an item, please follow the steps below. Wait for an RGA number to be issued. This process may take up to 5 days. All instances of fraud are referred to IC3, as well as state and local authorities, and will be prosecuted. Monday – Friday 8AM to 6PM Central Standard Time.