Description
Part Number: AR8611
ARP Mitsubishi 4G63 1st Gen Head Stud Kit
Engineered for high-boost applications, the ARP AR8611 cylinder head stud kit delivers unmatched clamping force for 1st Generation 6-bolt Mitsubishi 4G63 engines.
Key Performance Features
- ☑ Precision manufactured from premium 8740 chromoly alloy steel
- ☑ Heat treated to 200,000 psi tensile strength for extreme cylinder pressure retention
- ☑ Threads precision rolled after heat treatment for up to 10x greater fatigue resistance
- ☑ Prevents cylinder head lift and blown head gaskets under high turbo boost
- ☑ Features high-grade 12-point nuts and parallel-ground hardened washers
Technical Specifications
| Brand | ARP / Brian Crower |
|---|---|
| Part Number | AR8611 (ARP Cross-Ref: 207-4201) |
| Engine Fitment | Mitsubishi 4G63 1st Gen (6-Bolt 11mm Head Bolt Engines) |
| Material Grade | 8740 Chromoly Steel |
| Tensile Strength | 200,000 PSI |
| Nut Style | 12-Point Fastener Nut |
What’s Included in the Box
- High-Tensile 8740 Chromoly Head Studs
- Precision 12-Point Fastening Nuts
- Parallel-Ground Hardened Washers
- ARP Ultra-Torque Assembly Fastener Lubricant Packet
JP Racing is proud to supply authentic ARP hardware directly to the UK motorsport market. Protect your 4G63 engine build with industry-leading fastener technology backed by fast UK dispatch.
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