ARP Cylinder Head Fasteners High Performance Series Hex Head Bolts

ARP High Performance Series hex head cylinder head bolts are engine fasteners for street performance, racing, and high-output builds. They are also sold as cylinder head fasteners. The hex head design lets you tighten them with a standard socket. They are intended to hold the cylinder head to the block under the higher cylinder pressures of modified engines.

Key Features:

• Higher strength than stock: ARP builds these fasteners to give more clamping strength than many factory bolts.
• Hex head design: A standard socket fits the head, which makes installation and removal simple.
• Rolled threads: ARP rolls its threads after heat treatment. This improves fatigue resistance and helps the bolt keep a consistent clamping load.
• Made in the USA: ARP manufactures its fasteners in the United States under strict quality control.
• Built for performance engines: The bolts suit naturally aspirated, turbocharged, supercharged, and nitrous-assisted engines.

For best results, follow ARP's installation instructions. Use the lubricant ARP supplies or specifies, and tighten to the recommended torque values. Correct lubrication and torque give the most accurate clamping load. Pick the right part number for your application from the options listed on this page.