What material are these head studs made from?

These head studs are made from ARP's proprietary 18A material. This material has a tensile strength of 180,000 psi, making it stronger than standard factory head bolts.

What is the main benefit of using head studs over bolts?

Head studs generally offer more consistent clamping force and are less prone to stretching than bolts. This improved sealing can help prevent head gasket leaks, especially in engines that experience high combustion pressures.

Does this kit include everything needed for installation?

This kit includes the necessary head studs and nuts. It is recommended to use ARP's Ultra-Torque fastener lubricant and ensure the block bolt holes are clean for proper installation.

ARP SB Chevy 18A Head Stud Kit 234-4508

Name: ARP SB Chevy 18A raised port head stud kit
Brand: ARP
SKU: arp-arp-sb-chevy-18a-raised-port-head-stud-kit-t14-854185
Price: 240.35 USD
Availability: BackOrder

ARP SB Chevy 18A raised port head stud kit

$240.35

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 raised port head stud kit.

Key Features

Fits Small Block Chevy engines with raised port heads.
ARP 18A material offers 180,000 psi tensile strength.
Includes studs and nuts for a complete kit.
Designed for reliable clamping force and cylinder head sealing.
Helps prevent head gasket leaks in high-performance applications.
Manufactured to ARP's tight tolerances for a proper fit.

⚠️ 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

ARP is well-known for making strong fasteners, and this 18A raised port head stud kit for Small Block Chevy engines is no exception. If you're rebuilding the top end of your engine, especially with raised port heads, these studs are designed to hold those heads down securely.

This kit uses 180,000 psi tensile strength studs, which are stronger than the factory bolts. They're made from ARP's proprietary 18A material, offering excellent strength and durability for demanding engine builds. The kit includes the necessary studs and nuts, all manufactured to ARP's tight tolerances to ensure a proper fit and reliable clamping force. Using head studs like these can help prevent head gasket leaks and ensure consistent cylinder head sealing under high combustion pressures.

When installing, remember to clean the bolt holes in the block thoroughly to remove any oil or debris, as this can affect torque readings. ARP recommends using their Ultra-Torque fastener lubricant for proper installation. This kit is a solid option for anyone looking for a dependable way to secure their raised port heads on a Small Block Chevy.