What material are these main studs made from?

These main studs are manufactured from ARP's proprietary 260-177 alloy, also known as Ca625+. This material offers significantly improved tensile strength and fatigue life compared to standard ARP 8740 alloy.

Why is the Ca625+ material important for an LS1 engine build?

The Ca625+ material is crucial because it offers exceptional strength and resistance to stretching, even at elevated temperatures. This helps maintain consistent bearing clearances and prevents main cap walk, which is vital for high-performance LS1 engines.

What is the benefit of studs being rolled after heat treatment?

Studs that are rolled after heat treatment are up to 10 times more fatigue-resistant than those that are ground. This process creates a stronger thread form and a more durable stud, ensuring reliability under stress.

ARP SBC LS1 Main Stud Kit 234-5611

Name: ARP SBC LS1 Ca625+ Main Stud Kit
Brand: ARP
SKU: arp-arp-sbc-ls1-ca625-main-stud-kit-t14-711646
Price: 902.73 USD
Availability: BackOrder

ARP SBC LS1 Ca625+ Main Stud Kit

$902.73

On Backorder

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

ARP SBC LS1 Ca625+ Main Stud Kit.

Key Features

This kit includes ARP's Ca625+ main stud kit for SBC LS1 engines.
Studs are manufactured from ARP's proprietary 260-177 alloy, offering superior tensile strength and fatigue life.
The Ca625+ material provides excellent resistance to stretching, even at high temperatures, ensuring consistent bearing clearances.
Studs are rolled after heat treatment for up to 10 times greater fatigue resistance compared to ground studs.
Features a unique serial number for traceability.
Designed to handle the extreme clamping forces and stresses of high-performance engine builds.

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Product Details

This kit includes a full set of ARP's Ca625+ main stud kit for SBC LS1 engines. These aren't your average bolts; they're made from ARP's proprietary 260-177 alloy, which is a high-performance material that offers significantly improved tensile strength and fatigue life compared to standard ARP 8740 alloy. This means they can handle the extreme clamping forces and stresses found in high-performance LS1 builds, helping to keep your crankshaft securely in place under demanding conditions.

The Ca625+ material is notable for its exceptional strength and resistance to stretching, even at elevated temperatures. This is crucial for maintaining consistent bearing clearances and preventing main cap walk, which can lead to catastrophic engine failure. ARP's studs are also rolled after heat treatment, which makes them up to 10 times more fatigue-resistant than those that are ground. This process ensures a stronger thread form and a more durable stud overall. Each stud features a unique serial number for traceability.

When you're building a serious LS1 engine, the main studs are a critical component that shouldn't be overlooked. Using ARP's Ca625+ studs is a smart choice for anyone looking for the best possible reliability and performance from their engine build. Always refer to the manufacturer's installation instructions for proper torque specifications and procedures to ensure optimal performance and longevity of your engine.