ARP Chromoly 1/2-13 in Thread Bolt - 3.750 in Long - 9/16 in Hex Head - Black Oxide (Set of 5) 24232610 Holley recommends part numbers 12-1200

Holley recommends part numbers 12-1200 or 12-1600 for optimum hot fuel handling

yields springs to support up to

Don't take chances with blackened or plated stock type locks masquerading as genuine heat treated Isky

Vehicle Applications: 2015-2021 Ford F-150 67

ARP Chromoly 1/2-13 in Thread Bolt - 3.750 in Long - 9/16 in Hex Head - Black Oxide (Set of 5) 24232610 Holley recommends part numbers 12-1200Product Description: Bolt 1 2 13 in Thread 3. 750 in Long 9 16 in Hex Head Chromoly Black Oxide Universal Set of 5 ARP is the fastener of champions. They say that to be successful you must identify a need and satisfy it. Back in 1968 racing enthusiast Gary Holzapfel saw that many of his friendsa broken engines were caused by fastener failure. At the time, there were no commercially available studs and bolts up to the challenge. So Holzapfel called