ARP 400-1108 Header Bolt Kit Hex Head 16 Pieces

The ARP 400-1108 is a premium 16-piece header bolt kit featuring hex head design for secure exhaust header installation. These bolts are constructed from high-grade material nominally rated at 170,000 psi tensile strength, substantially stronger than standard Grade 8 hardware, ensuring reliable clamping force even under extreme thermal cycling and vibration.

Key Features:

• 16-piece complete bolt kit for header installation
• Hex head design for easy installation with standard sockets
• 170,000 psi tensile strength exceeds Grade 8 specifications
• Includes premium-quality washers for proper load distribution
• Engineered to withstand extreme heat and thermal cycling
• Prevents header loosening under high-vibration conditions

ARP header bolts are precision-manufactured to provide superior clamping force and durability compared to factory hardware. The hex head configuration allows for straightforward installation in tight engine bay spaces. Each kit includes the exact quantity of fasteners and washers needed for your application, eliminating the guesswork from header installation.