What material are these head studs made from?

These head studs are made from 8740 chromoly steel, which is chosen for its high strength and durability in demanding engine environments. They are also heat-treated for added toughness.

Are these studs suitable for all Small Block Chevy heads?

This specific kit is designed for Small Block Chevy engines that are equipped with raised port cylinder heads. It's important to confirm your head type before purchasing.

What is the benefit of rolled threads on head studs?

Rolled threads are stronger than cut threads because the material is displaced rather than removed, creating a more robust thread form. This also makes installation smoother and reduces the risk of stripping.

ARP SB Chevy 18A Raised Port Head Stud Kit 234-4108

Name: ARP SB Chevy 18A raised port head stud kit
Brand: ARP
SKU: arp-arp-sb-chevy-18a-raised-port-head-stud-kit-t14-854153
Price: 229.96 USD
Availability: BackOrder

ARP SB Chevy 18A raised port head stud kit

$229.96

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 cylinder heads.
Constructed from 8740 chromoly steel for high strength and durability.
Features heat-treated studs with rolled threads for improved strength and easier installation.
Designed to provide consistent clamping force for a secure cylinder head seal.
ARP is a well-known brand for engine fasteners.

⚠️ 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's 18A raised port head stud kit for Small Block Chevy engines uses 8740 chromoly steel, a well-known material for its strength and durability in high-stress engine applications. These studs are specifically designed for raised port cylinder heads, ensuring a secure and even clamping force across the deck surface. This is crucial for maintaining a proper seal between the cylinder head and the engine block, especially in performance applications where cylinder pressures can be significantly higher than stock.

The kit includes heat-treated studs with rolled threads, which are stronger and less prone to stripping than cut threads. ARP's advanced thread rolling process creates a more robust thread form, making installation smoother and ensuring the studs can be torqued to spec without issue. Proper installation of head studs is key to preventing head gasket leaks and maintaining consistent compression ratios, which directly impacts engine performance and longevity. This kit is a solid option for anyone rebuilding or upgrading their Small Block Chevy with raised port heads.