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ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.
The 8.1L Vortec Big Block Chevy is a powerhouse that deserves the best internal hardware. The Auto Racing Products (ARP) 12-Point Main Stud Kit is specifically designed for these engines, offering a robust solution for securing main caps while maintaining compatibility with windage trays. This kit provides the ultimate in clamping force and reliability for your Vortec engine build.
When upgrading your 8.1L Vortec, it is crucial to address the bottom-end stability. These main studs provide a significant upgrade over factory bolts, ensuring that your main caps remain perfectly aligned even under high-load conditions. The 12-point nuts not only offer a professional appearance but also allow for precise torque application, which is vital for maintaining proper bearing oil clearances. Whether you are building a heavy-duty towing engine or a high-performance street machine, this kit ensures your crankshaft is held securely. By choosing this ARP kit, you are investing in the longevity and performance of your engine. Find all your high-performance engine fastener needs at GGCRACING.
| Brand | Auto Racing Products |
|---|---|
| Manufacturer part number | 135-5901 |
| GGC SKU | BQDN_135-5901 |
| UPC / GTIN | 672036042882 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 8.5 × 4 × 2.5 in |
|---|---|
| Shipping weight | 4.67 lb |
Vehicle fitment is not listed for this part. Send us your year, make and model at sales@ggcracing.com and we will confirm before you order.
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