Description
These ARP studs are rated at 220,000 psi tensile strength, and provide the clamping force required to keep cylinder heads from lifting due to higher combustion pressures. Manufactured from proprietary ARP 2000 material, with threads rolled after heat-treat to provide optimum fatigue strength. They are centerless ground to assure perfect concentricity. The ends of the studs are broached to facilitate easy installation. This feature also enables the cylinder head to be removed in tight quarters. Also included in each kit are heat-treated, chrome-moly steel 12-point nuts and parallel-ground washers. They are black oxide finished for extra durability.
Part Type: Cylinder Head Fasteners
Product Line: ARP Pro Series Cylinder Head Stud Kits
Fastener Style: Stud
Head Style: 12-point
Fastener Material: 8740 chromemoly
Fastener Finish: Black oxide
Washers Included: Yes
Cut to Fit: No
Quantity: Sold as a kit.
ARP 247-4202 Key Features:
- Studs made of proprietary ARP 2000 material
- Heat-treated prior to thread rolling and machining for optimum fatigue strength
- Rated at 220,000 psi tensile strength
- Ample clamping force prevents cylinder heads from lifting
- Hardened parallel ground washers for an even load distribution and accurate torque readings
- Broached stud ends install & make cylinder head removal easier
- Chrome moly steel 12-pt nuts
- Comes with 0.5oz of ARP assembly lubricant.
NOTE: Hot Retorque Required.
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