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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.
Ensure your engine's structural integrity with the ARP M8 Main Cap Side Bolt Kit, specifically engineered for early Ford Modular aluminum block V8 engines. When building a high-performance engine, stock fasteners often fail to provide the clamping force required to handle increased horsepower and torque. ARP utilizes premium 8740 chromoly steel, heat-treated to provide superior tensile strength and fatigue resistance compared to OEM hardware.
This kit is essential for engine builders looking to prevent main cap walk and bearing failure. By providing uniform load distribution across the main caps, these bolts help maintain critical bearing clearances, which is vital for the longevity of your high-revving Ford V8. Whether you are performing a street performance build or a track-ready overhaul, these bolts offer the peace of mind that your bottom end is secured with professional-grade hardware. Installation is straightforward, following standard torque specifications to ensure optimal preload. Trust your engine build to the industry leader in fastener technology. Find all your high-performance engine hardware at GGCRACING.
| Brand | ARP |
|---|---|
| Manufacturer part number | 156-5001 |
| GGC SKU | ARP156-5001 |
| UPC / GTIN | 672036038120 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 9.8 × 5.8 × 1 in |
|---|---|
| Shipping weight | 0.9 lb |
Universal fit — check measurements. Compare the dimensions and specifications on this page with your application before you order.
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