ARP 234-4106 Cylinder Head Stud Kit Chrome Moly Steel - 8740

The ARP 234-4106 Head Stud Kit delivers professional-grade performance for high-performance and competition engine builds. Manufactured from premium 8740 chrome moly steel alloy rated at 200,000 psi tensile strength, these fasteners provide superior clamping force and reliability far exceeding standard head bolts.

Advanced Manufacturing Process:

• Precision heat-treated to 200,000 psi using vertical rack process for complete, even heat penetration
• Centerless ground after heat-treat for exceptional concentricity and straightness
• Thread rolled after heat-treat for approximately 1000% better fatigue strength versus pre-heat-treat threading
• Specially undercut shorter studs equalize stretch for consistent clamping force
• Each stud stamped with ARP mark for quality assurance

Key Benefits:

• Hex head design for convenient installation and removal
• Precision tolerances ensure cylinder heads and gaskets align perfectly during assembly
• Superior clamping consistency helps prevent head gasket failures
• Studs install finger-tight and stretch only on vertical axis when torqued, eliminating torsional load
• Ideal for racing and high-performance applications requiring frequent engine servicing

Kit includes hardened parallel-ground washers for even load distribution and accurate torque readings. The ARP 234-4106 represents the gold standard in cylinder head fastening systems, trusted by professional engine builders across all forms of motorsports.

Note: Re-torque fasteners after initial engine run-in to compensate for head gasket compression.