Description
Part Number: AF37-2230
Aeroflow Holden V8 2-Bolt Main Stud Kit
Engineered to prevent main cap walking and fretting in high-performance Holden 253, 304, and 308 V8 engines, providing superior clamping force and accurate torque readings.
Key Features
- ☑ Manufactured from aircraft-quality 8740 high tensile strength chromoly steel
- ☑ Cold-forged construction ensures complete molecular integrity and rated up to 190,000 PSI
- ☑ Eliminates main cap walk and fretting to prevent critical engine failure
- ☑ Includes 12-point nuts and hardened parallel washers for uniform load distribution
- ☑ Superior to OEM main cap bolts for more precise and reliable torque clamping
Technical Specifications
| Brand | Aeroflow Performance |
|---|---|
| Manufacturer Part Number | AF37-2230 |
| Engine Application | Holden V8 253, 304, 308 (2-Bolt Main Caps) |
| Material | 8740 Chromoly Steel |
| Tensile Strength | 190,000 PSI |
| Block Thread Size | 7/16″-14 |
| Nut Thread Size | 7/16″-20 |
| Nut Style | 12-Point Nut |
| Stud Dimensions | 101.6mm Overall Length / 49.5mm Shank Length |
What’s Included in the Box
- 10 x Aeroflow 8740 Chromoly Main Studs (7/16″-14 to 7/16″-20)
- 10 x Aeroflow 12-Point Nuts (7/16″-20)
- 10 x Hardened Parallel Flat Washers
Aeroflow Performance products are built to demanding motorsport standards, giving engine builders complete confidence during heavy-duty and competition use. At JP Racing, we supply full technical support and fast UK shipping to ensure your engine build stays on track.
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