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ARP 134-3610 Pro Series Cylinder Head Bolt Kit 12-Point 200,000 PSI

Manufacturer

ARP

<h3>The Gold Standard in Performance Fasteners</h3> <p>When racing enthusiast Gary Holzapfel recognized that fastener failure was causing many engine breakdowns in 1968, he founded Automotive Racing Products (ARP) to solve a critical problem in motorsports. Drawing on his aerospace fastener manufacturing experience, Holzapfel created a company that would revolutionize the performance fastener industry. Today, ARP stands as the world's premier manufacturer of high-strength bolts, studs, nuts, and specialized hardware for racing and high-performance applications.</p> <p>ARP controls all aspects of the manufacturing process in-house, with all operations closely monitored, enabling the company to maintain its reputation for zero-defect quality. Every fastener undergoes forging, heat treatment, thread rolling, and precision finishing at ARP's Southern California facilities, which span over 115,000 square feet. This vertically integrated approach ensures that each component meets exacting standards for strength, fatigue resistance, and reliability under extreme conditions.</p> <h3>Engineered for Championship Performance</h3> <p>ARP's customer roster reads like a who's who of professional motorsports. The product line ranges from quality high-performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, NASCAR and NHRA drag racing and marine applications. The company's fasteners have secured victories in virtually every major racing championship worldwide, from Top Fuel dragsters to Formula One cars, proving their worth under the most demanding conditions imaginable.</p> <p>The brand's <a href="/48-arp-engine-cylinder-head-bolt-set-10306">engine cylinder head bolt sets</a> represent the cornerstone of ARP's catalog, offering engine builders the clamping force and reliability needed to prevent head gasket failure in high-boost and high-compression applications. These precision-engineered fasteners utilize proprietary materials and heat treatments that deliver up to ten times the fatigue strength of conventional bolts, making them essential for any serious performance build.</p> <p>For engine internals, ARP manufactures <a href="/48-arp-engine-connecting-rod-5276">connecting rods</a> designed to withstand extreme cylinder pressures and high RPM loads. Each rod is manufactured to aerospace standards with tight tolerances and superior material properties. Whether you're building a street performance engine or a full competition powerplant, ARP connecting rods provide the strength and consistency that professional engine builders demand.</p> <h3>Complete Fastener Solutions</h3> <p>Beyond engine components, ARP's product range extends throughout the entire vehicle. The company's <a href="/48-arp-wheel-lug-stud-7680">wheel lug studs</a> offer critical safety and performance benefits for racing and high-performance street applications, providing greater clamping force and durability than factory studs. ARP's product line contains thousands of part numbers and has expanded to include virtually every fastener found in an engine and driveline.</p> <p>Individual <a href="/48-arp-engine-cylinder-head-bolt-5308">engine cylinder head bolts</a> are also available for custom applications or specific replacement needs, manufactured to the same exacting standards as complete sets. This flexibility allows builders to source exactly what they need for specialized builds or repairs without compromising on quality.</p> <p>What sets ARP apart is not just the breadth of their catalog, but their willingness to develop custom solutions for unique applications. The company maintains complete R&D capabilities, including metallurgical research, product design, prototype machining, and extensive laboratory testing. This engineering expertise ensures that whether you're installing a simple head stud kit or building a record-setting race engine, ARP fasteners deliver the reliability and performance that professionals trust.</p>

Part Number

134-3610
05/31/2036 8:00 PM
Sale Price

$144.46

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The ARP 134-3610 Pro Series cylinder head bolt kit delivers professional-grade clamping force and reliability for high-performance and racing engines. These fasteners are engineered to ARP's demanding zero-defect, zero-failure quality standard, making them the choice of top engine builders across all forms of motorsports.

Pro Series Construction and Materials:

  • Cold-forged ARP2000 alloy construction rated at 200,000 PSI tensile strength
  • Heat-treated prior to thread rolling for approximately 1000% better fatigue strength compared to pre-heat-treat threading
  • Centerless ground through multiple precision passes to ensure exceptional straightness and concentricity
  • 12-point head design with reduced wrenching profile and wide-area flange
  • Undercut short bolts on applicable studs to equalize stretch and provide more consistent clamping force

Performance Benefits:

  • Superior clamping force helps prevent head gasket failures under extreme cylinder pressures
  • Allows cylinder head retorquing without valve train removal
  • Precise tolerances ensure cylinder heads and gaskets align properly during assembly
  • Wide-area flange permits use of larger diameter valve springs
  • Hardened parallel-ground washers included for even load distribution and accurate torque readings

Each ARP Pro Series bolt undergoes vertical rack heat-treatment to ensure complete and uniform heat penetration throughout the fastener. The result is a cylinder head fastening system that provides consistent, reliable performance in the most demanding competition applications. ARP stamps each fastener as your assurance of genuine quality and precision manufacturing.

Installation Note: Re-torque all fasteners after initial engine run-in to compensate for head gasket compression and ensure optimal sealing.

Products specifications

Cut to Fit

No

Fastener Finish

Black oxide

Fastener Material

8740 chromemoly

Fastener Style

Bolt

Head Style

Hex

Notes

Fits engines with all same length head bolts.

Quantity

Sold as a kit.

Washers Included

Yes

Simple and fast

Item shipped 5 days after order was placed. Worth the wait for the great price however. Order Number: 18722

Super easy and the best price!

Autoplicity has an abundance of name brand parts at unbeatable prices. Customer service was also great to deal with. Receipt and tracking info was provided promptly.

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