Description
Part Number: AR8649
ARP High-Performance Cylinder Head Stud Kit
Engineered to deliver exceptional clamping strength and eliminate head gasket lifting under extreme cylinder pressures, high boost levels, and motorsport conditions.
Key Product Features
- ☑ Premium Alloy Material: Manufactured from premium heat-treated ARP2000 alloy steel rated to 220,000 PSI tensile strength.
- ☑ Precision Thread Rolling: Threads are rolled post heat-treatment for up to 1000% greater fatigue resistance compared to cut-thread fasteners.
- ☑ Centerless Ground Precision: Concentricity ground to exact tolerances ensuring perfectly uniform cylinder head torque loading and gasket sealing.
- ☑ Complete Hardware Package: Includes premium 12-point nuts, hardened parallel washers, and ARP Ultra-Torque assembly lubricant.
Technical Specifications
| Brand | ARP / Brian Crower |
|---|---|
| Manufacturer Part Number | AR8649 |
| Component Type | Cylinder Head Stud Kit |
| Fastener Material | ARP2000 High-Tensile Steel Alloy |
| Tensile Rating | 220,000 PSI |
| Nut Style | 12-Point Flange Nut |
What’s Included in the Box
- High-performance ARP cylinder head studs (AR8649)
- Precision-machined 12-point nuts
- Hardened parallel ground washers
- ARP Ultra-Torque Fastener Assembly Lubricant packet
Built to withstand extreme thermal and mechanical stresses, ARP fasteners are the definitive choice for high-horsepower road and race engines. At JP Racing, we supply authentic ARP hardware directly from stock with fast UK dispatch and expert technical advice. Upgrade your cylinder head sealing reliability with part number AR8649.
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