ARP Head Stud Kit Chrome Moly Undercut Studs

The ARP Head Stud Kit with Chrome Moly Undercut Studs is a cylinder head stud upgrade. It replaces factory head bolts with studs that give more consistent clamping force. This helps the head gasket seal under high cylinder pressure. These engine head studs suit performance street, racing, and heavy-duty builds.

Key Features:

• Chrome moly construction: The studs are made from chromemoly alloy steel for strength and fatigue resistance.
• Undercut shank design: The reduced-diameter shank section lets the stud stretch evenly. This improves load distribution and helps keep clamping force consistent.
• Stud-style installation: Studs thread into the block and are not twisted during tightening. This gives more accurate torque readings and reduces thread galling and block distortion compared with bolts.
• Rolled threads: Threads are rolled for strength and precision. This helps the studs hold up under repeated heat cycles and high loads.
• Complete kit: Kits are supplied with the hardware needed for installation, as specified for each part number.

ARP is a respected maker of fasteners for performance and racing engines. Choose the specific part number for your application from the options listed on this page. Follow ARP's included instructions and lubricant recommendations when installing.