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ARP 234-4308 High Performance Cylinder Head Stud Kit Chrome Moly - 8740

Manufacturer

Part Number

234-4308
Sale Price

$242.14

1 left at this price

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The ARP 234-4308 cylinder head stud kit delivers professional-grade engine fastening performance using premium 8740 chrome moly steel construction. Engineered for high-performance and racing applications, this kit features 12-point head studs rated at 200,000 psi tensile strength—significantly stronger than standard automotive fasteners.

Advanced Manufacturing Process:

  • Premium 8740 chrome moly alloy steel exceeding aircraft quality standards
  • Vertical rack heat treatment to 200,000 psi for complete, uniform heat penetration
  • Centerless ground after heat-treat for exceptional concentricity and straightness
  • Thread rolled after heat-treat for 10x better fatigue strength compared to pre-heat-treat threading
  • Precision tolerances ensure perfect alignment of gaskets and cylinder heads during assembly

Performance Features:

  • 12-point head design for secure, high-torque fastening
  • Undercut shorter studs equalize stretch for consistent clamping force across all fasteners
  • Compensates for head gasket compression to prevent blown gaskets
  • Includes hardened parallel-ground washers for even load distribution and accurate torque readings
  • Allows cylinder head installation and removal without valve train disassembly

Why Studs Over Bolts: Studs provide superior clamping accuracy because they stretch only along the vertical axis when torqued, unlike bolts which experience both torsional and tensile stress simultaneously. This results in more consistent and reliable clamping force. Studs install finger-tight in a relaxed state, then stretch predictably when the nut is torqued, making them ideal for racing engines that require frequent service and reassembly.

Each stud is marked with the ARP stamp as assurance of quality. This kit represents the same fastener technology trusted by professional engine builders across all forms of motorsports competition. Remember to re-torque after initial engine run-in to compensate for head gasket settling.

Products specifications

Cut to Fit

No

Fastener Finish

Black oxide

Fastener Material

8740 chromemoly

Fastener Style

Stud

Head Style

12-point

Quantity

Sold as a kit.

Washers Included

Yes

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