What is the main advantage of using ARP head bolts over stock bolts?

ARP head bolts are made from stronger 8740 chromoly steel and undergo an 18A heat-treat process. This provides greater clamping force and improved durability compared to standard factory bolts, leading to more reliable cylinder head sealing.

Does this kit include everything needed for installation?

This kit includes the ARP SB Chevy 18A head bolts. It is recommended to refer to the manufacturer's installation instructions for any additional hardware or preparation steps required for your specific application.

What does the '18A' designation mean for these bolts?

The '18A' designation indicates a specific heat-treatment process that ARP uses to further strengthen the 8740 chromoly steel. This process enhances the bolts' tensile strength and overall durability, making them suitable for demanding engine builds.

ARP SB Chevy 18A Head Bolt Kit 234-3723

Name: ARP SB Chevy 18A head bolt kit
Brand: ARP
SKU: arp-arp-sb-chevy-18a-head-bolt-kit-t14-854145
Price: 329.50 USD
Availability: BackOrder

ARP SB Chevy 18A head bolt kit

$329.50

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

ARP SB Chevy 18A head bolt kit. Strong 8740 chromoly steel construction for reliable cylinder head sealing.

Key Features

Fits Small Block Chevy engines.
Constructed from strong 8740 chromoly steel for enhanced durability and clamping force.
Features an 18A heat-treat for improved strength.
Bolts are centerless ground for concentricity, ensuring proper seating.
Designed to provide reliable cylinder head sealing.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

Built from strong 8740 chromoly steel, these ARP head bolts are a solid choice for your small block Chevy engine rebuild. They offer a significant upgrade over stock bolts, providing more clamping force to keep your cylinder heads securely in place under demanding conditions. This means a more reliable seal between your cylinder head and engine block, which is crucial for preventing leaks and maintaining proper engine compression.

ARP is well-known for making well-built engine components, and this head bolt kit is no exception. The 18A designation refers to a specific heat-treat process that further strengthens the bolts, ensuring they can handle the stresses of performance applications. Each bolt is also centerless ground for concentricity, which helps ensure they thread in smoothly and seat properly. This attention to detail makes for a more consistent and reliable installation.

When you're rebuilding or upgrading your small block Chevy, using quality fasteners like these ARP head bolts is essential for long-term performance and reliability. Make sure to follow the manufacturer's recommended torque sequence and specifications during installation for optimal results.