Secure your engine's top end with the ARP 234-4342 Head Stud Kit, specifically engineered for the Small Block Chevrolet LT1 (6.2L) engine. Unlike standard cylinder head bolts that twist during the torquing process, these studs provide a stationary mounting point that ensures more accurate torque loading and superior clamping force. This design protects the threads in your engine block and provides a much more consistent seal for your head gaskets, which is critical in high-performance or high-compression applications.

• Fits Small Block Chevy LT1 (6.2L) engines
• Manufacturer Part Number: 234-4342
• Provides superior clamping force over standard head bolts
• Ensures accurate torque readings by eliminating fastener twisting
• Includes all necessary studs, nuts, and hardened parallel-ground washers

Ensure superior cylinder head sealing and maximum clamping force with the ARP 234-4341 Head Stud Kit, specifically engineered for Chevy Dart LS Next 23-bolt engine blocks. In high-horsepower applications involving forced induction or high compression, these studs are a critical upgrade over standard fasteners to prevent head gasket failure and cylinder head lifting.

• Precision Engineering: Designed specifically for the Dart LS Next platform utilizing the 23-bolt head pattern.
• Consistent Clamping: Studs provide more accurate torque loading by remaining stationary in the block during assembly, preventing thread wear and ensuring even load distribution.
• Complete Hardware: The kit includes high-strength studs, parallel-ground washers, and 12-point nuts for a secure, professional installation.
• MPN: 234-4341

By using studs instead of bolts, you protect the aluminum threads in your performance block while achieving the high-tension fastening required for race-level combustion pressures.

Fits select 1997-2005 Cadillac CTS-V, Chevrolet Camaro, Corvette, and Pontiac Firebird/GTO models with Gen III/IV LSX engines.

The ARP 234-4319 Head Stud Kit provides the superior clamping force needed to prevent head gasket failure in high-performance LS-based engines. Unlike factory torque-to-yield (TTY) bolts that must be discarded after one use, these precision-machined studs allow for more accurate torque loading and facilitate easier cylinder head alignment during installation. The 12-point nut design offers a compact footprint, making it easier to access fasteners in the tight confines of the LS engine bay.

• Manufacturer Part Number: 234-4319
• Fastener Style: 12-Point Nuts
• Engine Platform: SB Chevy Gen III/IV LSX
• Includes premium parallel-ground washers and high-strength nuts
• Replaces factory head bolts for improved reliability

Fits 2004 and newer Chevrolet LS-series Gen III/IV engines equipped with cylinder heads requiring all equal-length studs.

The ARP 234-4317 Pro Series Head Stud Kit is a critical upgrade for any high-performance Chevrolet LS build, providing significantly more consistent clamping force than factory torque-to-yield (TTY) bolts. These studs prevent cylinder head lifting and gasket failure, especially in applications utilizing high compression, turbochargers, or superchargers.

Manufactured from premium 8740 chrome moly steel, these fasteners are heat-treated to a 200,000 psi tensile strength rating. The threads are rolled after heat treatment, which ensures superior fatigue strength compared to studs with threads cut before heat treating. This kit is designed for blocks where all 10 primary head bolts are the same length (approximately 100mm).

• Material: 8740 Chrome Moly Steel
• Tensile Strength: 200,000 psi
• Nut Style: 12-point nuts for precise torque application
• Finish: Black oxide for corrosion resistance
• Compatibility: 2004+ LS Gen III/IV blocks (All same length studs)
• Includes: Complete set of studs, parallel-ground washers, 12-point nuts, and ARP Ultra-Torque fastener assembly lubricant
• Part Number: 234-4317

Fits select 1997-2003 Chevrolet LS1 and LS6 engines (V8-5.7L).

Protect your engine block and ensure a reliable head gasket seal with the ARP Pro-Series Cylinder Head Stud Kit (234-4316). This kit is engineered specifically for early LS-series blocks that utilize equal-length primary head bolts. Unlike factory torque-to-yield fasteners which must be discarded after one use, these high-strength studs are reusable and provide significantly more accurate torque loading.

By using studs instead of bolts, you eliminate the shearing force on the block threads during the torquing process, which is critical for preserving the integrity of aluminum LS engine blocks. Each stud is heat-treated and centerless ground to ensure perfectly concentric assembly, making this an essential upgrade for any high-performance build or head gasket replacement.

• Manufacturer Part Number: 234-4316
• Fastener Style: 12-Point Nut
• Material: Premium 8740 Chromoly Steel
• Head Bolt Length Style: Equal Length (Fits blocks produced up to 2003)
• Includes: Full set of studs, 12-point nuts, and parallel-ground washers

Fits 2004-2005 Cadillac CTS V and 2004 Pontiac GTO Base.

Engineered for high-performance applications where maximum cylinder head clamping force is non-negotiable, the ARP Custom Age 625+ (CA625+) head stud kit provides a significant strength upgrade over factory hardware. These studs are manufactured from a specialized super-alloy that offers superior fatigue life and tensile strength compared to standard chromoly fasteners, making them ideal for high-compression or forced induction builds.

• Manufacturer Part Number: 234-4314
• Material: Custom Age 625 Plus (CA625+)
• Nut Style: 12-Point
• Configuration: Direct replacement for OE head bolts
• Includes high-strength studs, 12-point nuts, and precision-ground parallel washers

By using studs instead of bolts, you ensure more accurate torque loading and prevent thread wear in the engine block. The 12-point nut design provides a compact footprint for better tool clearance during installation and more consistent clamping across the cylinder head surface.

Secure your cylinder heads with the confidence only ARP can provide. This ARP 12-point head bolt kit (234-3726) is engineered specifically for the Chevrolet Small Block LSA engine, providing a significant upgrade over factory Torque-to-Yield (TTY) fasteners. Designed to withstand the increased cylinder pressures of the supercharged 6.2L LSA, these bolts ensure consistent clamping force to prevent head gasket failure.

Forged from premium 8740 chrome-moly steel and heat-treated to a 200,000 psi tensile strength, these fasteners are thread-rolled after heat treatment for superior fatigue resistance. The compact 12-point head design allows for easier socket access in the tight casting areas of the LSA heads, while the included hardened parallel-ground washers ensure even load distribution across the head surface.

• Manufacturer Part Number: 234-3726
• Fits Chevrolet 6.2L LSA Supercharged V8 engines
• Material: 8740 Chrome-Moly Steel
• Head Style: 12-Point
• Tensile Strength: 200,000 psi
• Includes complete set of bolts and hardened washers for two cylinder heads

Fits Chevrolet LT1 (6.2L) Small Block engines.

The ARP 234-3711 Head Bolt Kit provides the superior clamping force needed to maintain a reliable cylinder head seal on Gen V LT1 engines. These fasteners are engineered to exceed the performance of factory hardware, offering higher tensile strength and better fatigue resistance for performance builds. This specific kit includes the essential M8 corner bolts required for proper fitment on the LT1 block architecture.

• Manufacturer Part Number: 234-3711
• Engine Fitment: Chevrolet LT1 6.2L Small Block
• Configuration: Includes M8 corner bolts
• Replaces factory cylinder head bolts for improved reliability
• Precision-rolled threads for consistent torque loading
• Includes all necessary bolts and hardened washers for a complete installation

Secure your cylinder heads with the professional-grade clamping force of the ARP Pro Series Head Bolt Kit (234-3710). Designed for the Chevrolet LT1 6.2L Small Block, this kit provides a critical upgrade over factory torque-to-yield (TTY) hardware. These fasteners are engineered to handle increased cylinder pressures, making them essential for high-performance builds, whether you are refreshing a stock bottom end or adding forced induction.

Constructed from 8740 chromoly steel, these bolts are heat-treated to a 200,000 psi tensile strength rating. The threads are rolled after heat treatment, which improves fatigue life and ensures precision fitment during installation. Unlike OEM bolts, these ARP fasteners are reusable, offering long-term value for enthusiasts who frequently service their engines.

• Fits Chevrolet LT1 6.2L Small Block engines
• Series: ARP Pro Series
• Manufacturer Part Number: 234-3710
• Material: 8740 Chromoly Steel
• Tensile Strength: 200,000 psi
• Finish: Black Oxide
• Includes premium parallel-ground washers for uniform load distribution

Fits Chevy LSA Small Block engines.

The ARP 234-3603 ARP2000 Hex Head Bolt Kit provides the superior clamping force required for high-output Chevy LSA builds, particularly those running increased boost levels. Upgrading to these high-strength fasteners is essential for preventing cylinder head lift and maintaining a reliable head gasket seal under extreme combustion pressures.

• Material: ARP2000 high-performance alloy
• Tensile Strength: Rated at 220,000 psi
• Head Style: Traditional Hex Head
• Includes premium parallel-ground washers for uniform load distribution
• Finish: Black oxide coating for corrosion resistance
• Manufacturer Part Number: 234-3603

Each bolt is heat-treated before thread rolling and machining, ensuring maximum fatigue life and precision tolerances. This kit serves as a critical upgrade over factory torque-to-yield hardware, allowing for more accurate pre-loading and the ability to reuse fasteners during future engine teardowns.

Fits 2004-up Small Block Chevrolet (LS-series) engines.

The ARP 234-3602 Head Bolt Kit is engineered for high-performance builds where superior clamping force is mandatory to maintain a reliable head gasket seal. Unlike standard 8740 chromoly, this kit is manufactured from ARP2000 alloy, which is heat-treated to a tensile strength of 220,000 psi. This makes it an ideal upgrade for high-compression, turbocharged, or supercharged applications that exceed the limits of factory torque-to-yield fasteners.

These fasteners feature a traditional hex head for easy tool engagement and are designed specifically for the 2004 and later engine blocks that utilize equal-length head bolts. Each kit includes premium parallel-ground washers to ensure even load distribution and accurate torque readings during installation. Because these are high-quality ARP fasteners, they are fully reusable, unlike one-time-use OE bolts.

• Manufacturer Part Number: 234-3602
• Material: ARP2000 Alloy
• Tensile Strength: 220,000 psi
• Head Style: Hex
• Fastener Style: Bolt
• Includes: Complete set of head bolts and parallel-ground washers

Fits select 1995-2007 Chevrolet Cavalier, Cobalt, and Pontiac G5, Sunfire (2.2L).

Ensure superior cylinder head sealing and maximum clamping force with the ARP Head Stud Kit (231-4701) for the GM 2.2L Ecotec engine. Unlike factory head bolts that twist during torquing, these studs are installed in a relaxed state before the nuts are tightened. This process provides a more accurate and consistent torque load, significantly reducing the risk of head gasket failure under high cylinder pressures.

• Replaces factory torque-to-yield (TTY) bolts for increased reliability.
• Precision-machined threads facilitate more accurate torque readings.
• Helps align the cylinder head and gasket during assembly to prevent damage.
• Heat-treated and manufactured to strict tolerances for high-performance applications.
• Manufacturer Part Number: 231-4701

Fits 2017-2019 GM Duramax Diesel (6.6L L5P).

Protect your engine against head gasket failure with the ARP 230-4301 ARP2000 Head Stud Kit. For high-performance L5P applications where increased cylinder pressures are a concern, these studs provide the superior clamping force and stability that factory head bolts cannot match. Unlike standard bolts that twist and stretch during torquing, studs provide a more accurate and consistent load on the gasket.

• Manufactured from premium ARP2000 alloy with 220,000 psi tensile strength
• Threads are rolled after heat-treatment for maximum fatigue life
• Precision centerless ground for perfectly concentric engagement
• Black oxide finish provides long-lasting corrosion resistance
• Includes high-strength 12-point nuts and parallel-ground washers
• Packaged with ARP Ultra-Torque fastener assembly lubricant
• Manufacturer Part Number: 230-4301

Fits Chevy Duramax 2.8L diesel engines.

The ARP 230-4203 Head Stud Kit is a critical upgrade for the 2.8L Duramax diesel engine, designed to replace factory torque-to-yield (TTY) bolts. Unlike OE bolts that stretch during installation and can fail under high cylinder pressure, these studs provide superior clamping force and remain dimensionally stable to keep the cylinder head securely sealed.

By using studs instead of bolts, you ensure a more accurate torque load on the engine block, preventing head gasket lifting and potential coolant leaks. This kit is manufactured to ARP's industry-leading standards, providing a significant increase in tensile strength over stock hardware for both stock and modified diesel applications.

• Manufacturer Part Number: 230-4203
• Replaces factory cylinder head bolts for improved engine reliability
• Ensures uniform clamping force across the cylinder head
• Precision-machined threads to prevent binding and ensure accurate torque
• Includes high-strength studs, 12-point nuts, and parallel-ground washers

Fits 2009-2012 Cadillac CTS V and Chevrolet Corvette ZR1.

Ensure a reliable cylinder head seal on your high-performance GM small block with the ARP Gen III/LS9 Head Bolt Kit. Engineered for engines subject to high cylinder pressures, these fasteners provide significantly higher tensile strength than standard factory torque-to-yield bolts. This prevents head gasket failure and head lifting during heavy load or high-boost applications common in LSA and LS9 platforms.

This kit is a direct high-performance replacement for original equipment hardware, designed specifically for the block architecture found in the supercharged CTS-V and Corvette ZR1. Like all ARP fasteners, these bolts are manufactured to exacting tolerances to provide consistent, repeatable clamping force across the entire cylinder head.

• Manufacturer Part Number: 230-3701
• Series: ARP Gen III/LS9 Small Block
• Application: Cylinder Head Fastener Kit
• Includes all necessary bolts for a complete head installation
• Precision machined for maximum strength and durability

Fits 2010-2013 Hyundai Genesis Coupe (2.0L / 2.0T).

The ARP 228-4301 Head Stud Kit provides the superior clamping force required to maintain a reliable cylinder head seal in the Hyundai G4KF turbo engine. Replacing factory head bolts with high-strength studs prevents head lifting and gasket failure, especially in applications seeing increased boost levels or higher combustion pressures. By using a stud rather than a bolt, you achieve more accurate torque loading as the fastener is not subjected to the twisting loads of being threaded into the block under tension.

• Manufacturer Part Number: 228-4301
• Engine Application: Hyundai 2.0L G4KF Turbo
• Components: Includes heat-treated studs, parallel-ground washers, and 12-point nuts
• Performance: Superior fatigue strength and tensile loading compared to OE hardware

Fits Volvo B25 (2.5L) 5-cylinder engines.

The ARP 219-4301 Pro Series head stud kit is an essential upgrade for Volvo B25 powerplants, particularly those modified for high boost or increased compression. Unlike factory torque-to-yield bolts that are designed to stretch once and be discarded, these ARP studs provide consistent, repeatable clamping force and are fully reusable. By securing the cylinder head with high-strength studs rather than bolts, you ensure a more uniform load across the head gasket, significantly reducing the risk of gasket failure under extreme cylinder pressures.

Each stud is manufactured from premium 8740 chrome moly steel, heat-treated to a tensile strength of 190,000 psi. To ensure perfect concentricity and structural integrity, every piece is centerless ground and the threads are rolled after heat treatment, resulting in much higher fatigue strength than standard cut threads.

• Manufacturer Part Number: 219-4301
• Material: 8740 Chrome Moly Steel
• Tensile Strength: 190,000 psi
• Finish: Black Oxide
• Features: Rolled threads for maximum fatigue life
• Included Hardware: 8740 studs, parallel-ground washers, and 12-point nuts

Fits 1998-2002 Mazda Protege and Protege5 (2.0L).

The ARP 218-4703 Head Stud Kit provides the superior clamping force required to maintain cylinder head integrity on the Mazda 2.0L FS-DE engine. Designed to replace factory head bolts, these studs ensure more accurate torque loading and prevent the head from lifting under high-stress conditions. This kit is a vital component for any 1998-2002 Protege build where maximum head gasket reliability is a priority.

• Manufacturer Part Number: 218-4703
• Fitment: Mazda 1998-2002 Protege (DX, ES, LX, MP3) and 2002 Protege5
• Engine: 2.0L FS-DE
• Type: Head Stud Kit

Fits select 2003-2007 Mazda 3, 5, and 6 (2.3L).

The ARP 218-4702 head stud kit is an essential upgrade for maintaining high-performance engine integrity. These studs provide significantly more clamping force than factory torque-to-yield (TTY) bolts, which helps prevent cylinder head lifting and subsequent head gasket failure. Designed for the 2.3L Mazda platform, this kit ensures uniform load distribution across the head surface, making it a critical component for both high-mileage rebuilds and performance applications.

• Prevents cylinder head lift and protects head gasket seal
• Superior strength and durability compared to OE hardware
• Replaces factory cylinder head bolts for improved reliability
• Engine Compatibility: 2.3L
• Manufacturer Part Number: 218-4702
• Includes all necessary studs, 12-point nuts, and washers

Fits 1990-2005 Mazda Miata models including Base, LS, SE, and Mazdaspeed variants.

The ARP 218-4701 Head Stud Kit is an essential upgrade for maintaining a reliable cylinder head seal in Mazda Miata engines. Unlike factory torque-to-yield bolts that stretch and can become permanent weak points, these studs provide significantly higher clamping force and more consistent torque loading. This is critical for preventing head gasket failure in high-performance applications, whether you are running a naturally aspirated track build or a high-boost forced induction setup.

• Replaces factory head bolts with high-strength studs for superior clamping
• Precision-machined threads for optimal engagement and accurate torque readings
• Helps prevent head lifting and gasket failure under extreme cylinder pressure
• Includes all necessary studs, parallel-ground washers, and 12-point nuts
• Manufacturer Part Number: 218-4701

Fits 2004-2009 Saturn Ion Red Line and Sky Red Line (2.0L).

The ARP Vauxhall/Opel 2.0L 16V Head Stud Kit (209-4701) provides the essential clamping force required to maintain a reliable seal between the cylinder head and engine block. For the forced-induction 2.0L Ecotec engines found in the Saturn Red Line models, replacing the factory torque-to-yield (TTY) bolts with high-strength ARP studs is a critical upgrade to prevent head lifting and gasket failure under increased boost pressures.

• Manufacturer Part Number: 209-4701
• Application: Vauxhall/Opel 2.0L 16V engines
• Provides more accurate and consistent torque loading than factory bolts
• Helps prevent cylinder head movement and gasket leakage
• Premium grade hardware designed for high-performance and racing use

Fits Vauxhall/Opel 2.0L 16V engines (2.0L).

The ARP 209-4301 Head Stud Kit provides the superior clamping force necessary to prevent cylinder head lift and gasket failure. Unlike standard factory head bolts that stretch during torque-to-yield installation, these high-strength studs are designed for maximum fatigue life and precise engine assembly. This kit is an essential upgrade for both high-performance builds and standard engine refreshes where reliability is the priority.

• Manufacturer Part Number: 209-4301
• Application: Vauxhall/Opel 2.0L 16V
• Provides more consistent clamping force than OE bolts
• Includes high-strength studs, nuts, and washers
• Engineered for precise tolerances and durability

Ensure superior cylinder head sealing and prevent head gasket failure under high-combustion pressure with the ARP Head Stud Kit (208-4703). Specifically engineered for the Honda/Acura B20A5 (2.0L) engine, these fasteners replace the factory cylinder head bolts to provide more accurate and consistent clamping force.

• Manufactured from premium 8740 chromoly steel for extreme durability
• Heat-treated to a tensile strength of 200,000 psi to resist stretching
• Precision centerless ground and thread-rolled after heat treatment for maximum fatigue strength
• Black oxide finish provides corrosion resistance and long-term reliability
• Kit includes high-quality 12-point nuts and parallel-ground washers for even load distribution
• Manufacturer Part Number: 208-4703

Unlike standard head bolts that twist during installation, ARP studs reach the correct torque spec without frictional vertical load, ensuring the head stays planted even in performance applications.

Fits 2000-2003 Honda S2000 Base (F20C).

The ARP 208-4702 Head Stud Kit is an essential upgrade for any high-performance Honda F20C engine. Unlike factory head bolts that can stretch or yield under high cylinder pressures, these ARP studs provide the superior clamping force and fatigue life necessary to prevent head gasket failure in turbocharged, supercharged, or high-compression naturally aspirated builds.

• Manufactured from premium alloy for high tensile strength.
• Heat-treated and thread-rolled for maximum durability and precise fitment.
• Provides consistent loading to the cylinder head for a better gasket seal.
• Complete kit includes all necessary studs, 12-point nuts, and hardened washers.
• Manufacturer Part Number: 208-4702

Fits 2002-2006 Acura RSX (Base/Type-S) and 2002-2005 Honda Civic Si with K20A2 or K20A3 engines.

The ARP 208-4701 Head Stud Kit is an essential upgrade for any high-performance Honda K-series engine. Standard head bolts are designed to stretch, which can lead to head gasket failure under the increased cylinder pressures found in high-compression or turbocharged builds. ARP studs provide superior clamping force and consistent torque loading to ensure a reliable seal between the cylinder head and engine block.

These studs are manufactured from 8740 chrome moly steel and heat-treated to a 200,000 psi tensile strength rating. The threads are rolled after heat treatment, a process that significantly improves fatigue resistance compared to inferior fasteners. This kit is a direct replacement for OE hardware and is designed to withstand the rigors of both competitive racing and spirited street driving.

• Manufacturer Part Number: 208-4701
• Material: 8740 Chrome Moly
• Tensile Strength: 200,000 psi
• Finish: Black Oxide
• Compatible Engines: Honda/Acura K20A2, K20A3
• Includes: Complete set of head studs, 12-point nuts, parallel-ground washers, and assembly lubricant

Fits 1994-2000 Honda Civic Si and Civic del Sol VTEC (B16A).

The ARP Head Stud Kit (208-4601) provides the superior clamping force required to maintain cylinder head integrity on your Honda B16A engine. By replacing factory head bolts with these high-strength studs, you ensure more accurate torque loading and prevent the head from lifting under high cylinder pressures. This kit is an essential upgrade for any performance build, designed to maintain a consistent head gasket seal during extreme operating conditions.

• Optimized for the Honda B16A engine platform
• Provides superior cylinder head alignment and gasket compression
• Includes high-strength studs, parallel-ground washers, and 12-point nuts
• Manufacturer Part Number: 208-4601

Vehicle Fitment:

• 1999-2000 Honda Civic Si
• 1994-1997 Honda Civic del Sol VTEC

Secure your cylinder head with the ARP 2000 Series Head Stud Kit, specifically engineered for the 1990-2005 Acura NSX (3.2L). These high-strength fasteners provide the superior clamping force required to prevent head gasket failure, particularly in high-compression or forced induction applications. Unlike standard head bolts that twist during tightening, these studs remain stationary, allowing for more accurate and consistent torque loading through the nuts.

• Manufactured from premium ARP 2000 alloy steel with 220,000 psi tensile strength
• Precision centerless ground and heat-treated before thread rolling for maximum fatigue strength
• Compact 12-point nuts facilitate easier installation in the tight confines of the NSX cylinder head valleys
• Includes parallel-ground washers for even load distribution
• Direct replacement for OE head bolts
• Manufacturer Part Number: 208-4309

Fits 2009-2013 Honda Fit (1.5L).

Ensure maximum clamping force and protect your engine against head gasket failure with the ARP Head Stud Kit (MPN 208-4308). Engineered specifically for the Honda 1.5L L15 SOHC 4-cylinder engine, these studs replace the factory head bolts to provide a significantly more reliable seal. Unlike standard bolts that stretch during torque-to-yield installation, ARP studs offer a consistent load that remains stable under high cylinder pressures and thermal cycles.

• Designed for Honda 1.5L L15 SOHC 4-cylinder applications.
• Precision machined to ensure an exact fit and even load distribution.
• Essential for both high-mileage refreshes and performance builds.
• Includes all necessary studs, parallel-ground washers, and 12-point nuts.
• Manufacturer Part Number: 208-4308

Fits 1992-1996 Honda Prelude Si and SE models equipped with the H23A engine.

Ensure your engine's head stays sealed under high-pressure conditions with the ARP Head Stud Kit (MPN: 208-4307). Unlike standard OE head bolts that stretch during installation and thermal cycling, ARP head studs are designed to provide superior clamping force and a more consistent torque load. This kit is an essential upgrade for high-compression or turbocharged builds where maintaining head gasket integrity is critical.

• Manufactured from premium grade alloy for maximum tensile strength
• Precision heat-treated and thread-rolled for superior fatigue life
• Provides uniform clamping force to prevent head gasket failure
• Replaces factory head bolts with high-strength studs
• Manufacturer Part Number: 208-4307
• Includes high-strength studs, 12-point nuts, and parallel-ground washers

Fits select 1988-2001 Acura Integra and Honda Civic, CRX, and Civic del Sol models utilizing a B20B engine block paired with a B16A VTEC cylinder head.

Essential for high-performance LS-VTEC and B20-VTEC hybrid builds, the ARP 208-4306 head stud kit provides the superior clamping force needed to prevent head gasket failure under high cylinder pressures. Unlike standard torque-to-yield OEM bolts that stretch during installation, these ARP fasteners are manufactured from 8740 chrome moly steel and are heat-treated to 200,000 psi tensile strength. This ensures a consistent seal across the head-to-block interface, even in forced induction or high-compression naturally aspirated applications.

Each stud is centerless ground to ensure perfect concentricity and the threads are rolled after heat treatment, giving them approximately 1000% (10 times) better fatigue strength than studs with threads cut before heat treatment. This kit includes all necessary hardware for a complete installation, including premium-quality parallel ground washers and 12-point nuts.

• Manufacturer Part Number: 208-4306
• Material: 8740 Chrome Moly Steel
• Tensile Strength: 200,000 psi
• Finish: Black Oxide
• Fastener Style: Stud
• Head Style: 12-Point Nut
• Includes: Full set of studs, parallel ground washers, and 12-point nuts