ARP Hi-Performance Head Bolt Kits


High Performance Head Bolt Kit

  • Small Block Chevy 23 Degree Cast Iron OEM, Gen III Vortec/Truck, Most Edelbrock, LT-AFR, Brodix-8,-10,-11,-11xb, LT-1, Dart Pro-1 Heads (All Black Oxide)
  • 12pt Head
SKU: ARP134-3701 Category:


  • Reduced wrenching hex or 12-point wide area flanged heads
  • 180,000 psi tensile strength
  • 15% stronger than Grade 8 hardware
  • Includes hardened parallel-ground washers
  • Black oxide or stainless finish



Manufacturer Part Number


ARP Hi-Performance Head Bolt Kits

ARP’s High-Performance Series Head Bolt Kits are available with a reduced wrenching hex or 12-point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing. All High-Performance Series bolts are 180,000 psi tensile strength, which is 15% stronger than Grade 8 hardware. These kits come complete with hardened parallel-ground washers.

Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to