Secure your cylinder heads with the industry-standard fastener solution: the ARP 12-Point Head Stud Kit (MPN 153-4303). Designed specifically for the Ford 3.5L EcoBoost V6 engine, this kit provides the superior clamping force necessary to prevent head gasket failure in high-performance applications, especially those running increased boost pressures.

Unlike factory head bolts that stretch during installation (yield-to-torque), ARP studs are heat-treated and thread-rolled after heat-treat to ensure optimum fatigue strength. This design allows for more accurate and consistent torque loading, which is critical for maintaining a reliable seal between the block and the head. The 12-point nut design offers a smaller footprint for easier installation in tight clearances while providing a high degree of surface contact.

• Fits Ford 3.5L EcoBoost V6 engines
• Precision machined from high-strength 8740 chromoly alloy
• Heat-treated to 200,000 psi tensile strength
• Compact 12-point nuts for maximum clearance
• Includes all necessary studs, 12-point nuts, and hardened parallel-ground washers
• Manufacturer Part Number: 153-4303

Fits Ford Pinto 2300cc (2.3L) Inline 4 engines.

Ensure superior cylinder head sealing and prevent head gasket failure under high-performance conditions with the ARP 151-4702 Head Stud Kit. These studs are engineered to replace standard OE head bolts, providing significantly more consistent clamping force. The undercut shank design allows the stud to stretch more uniformly within its elastic range for precise torque loading, while the compact 12-point nuts provide easier access in the tight clearances of the Pinto valvetrain.

• Manufacturer Part Number: 151-4702
• Designed for Ford Pinto 2300cc I4 engines
• Undercut shank for more accurate and uniform clamping force
• Heat-treated 12-point nuts for maximum durability and clearance
• Includes hardened parallel-ground washers for even load distribution
• Precision-rolled threads for maximum fatigue life and to prevent galling

Fits Ford 2.3L EcoBoost engines. This ARP Head Stud Kit provides the essential clamping force needed to prevent head gasket failure in high-performance and high-boost applications.

Unlike factory torque-to-yield (TTY) bolts that stretch during installation and can yield further under combustion pressure, these studs are engineered for maximum stability and reusability. By using a stud instead of a bolt, you achieve more accurate torque loading as the fastener isn't subjected to the twisting forces of being threaded into the block under load.

• Manufactured from premium 8740 chromoly steel.
• Heat-treated to 200,000 psi tensile strength for superior fatigue resistance.
• Precision centerless ground for perfectly concentric studs.
• J-form threads are rolled after heat-treat for 1000% higher fatigue strength than standard threads.
• Compact 12-point nuts allow for easier tool clearance.
• Includes studs, parallel-ground washers, 12-point nuts, and ARP Ultra-Torque assembly lubricant.
• Manufacturer Part Number: 151-4301

Fits 2003-2007 Ford Focus (2.3L).

Ensure maximum cylinder head sealing and prevent gasket failure in your Duratec engine with the ARP Head Stud Kit (MPN: 151-4204). Unlike standard factory head bolts that stretch during installation, these ARP studs are designed to provide consistent, even clamping force across the entire cylinder head. This is a critical upgrade for any high-performance build, especially those involving increased compression or forced induction where combustion pressures are significantly higher than stock.

By using studs instead of bolts, you allow the cylinder head to be accurately positioned on the block. The studs are threaded into the block under zero tension, and the head is secured using high-quality nuts and washers, which prevents the torque-loading of the engine block threads common with traditional bolts.

• Manufacturer Part Number: 151-4204
• Specifically engineered for the Ford 2.3L Duratec engine platform
• Provides superior clamping force to maintain head gasket integrity
• Includes all necessary studs, parallel-ground washers, and 12-point nuts
• Essential for high-RPM and high-boost applications

Fits Ford 2000cc (2.0L) SOHC Pinto Inline 4 engines.

The ARP 151-4201 Head Stud Kit is a critical upgrade for any engine builder looking to ensure maximum cylinder head sealing on the Ford 2.0L Pinto powerplant. Unlike factory head bolts that can stretch or twist during installation, these high-strength studs provide a consistent and accurate clamping force. This is essential for preventing head gasket failure in high-compression or performance applications where combustion pressures exceed stock limits.

Each stud is manufactured from premium 8740 chrome moly steel and heat-treated to a 200,000 psi tensile strength. To ensure the highest level of fatigue resistance, threads are rolled after heat treatment. This kit comes complete with parallel-ground washers and 12-point nuts to provide a professional finish and uniform load distribution across the cylinder head.

• Manufacturer Part Number: 151-4201
• Material: 8740 Chrome Moly
• Tensile Strength: 200,000 psi
• Fastener Style: Stud
• Head Style: 12-Point Nut
• Finish: Black Oxide
• Included Hardware: Studs, washers, and nuts

Fits 1983-1987 Ford F-150, F-250, and F-350 trucks equipped with the International 6.9L Diesel engine.

Engineered to eliminate head gasket failure and cylinder head lifting in high-compression diesel environments, the ARP 150-4069 Head Stud Kit provides significantly more clamping force than factory TTY (Torque-to-Yield) head bolts. Unlike stock bolts that stretch during installation and thermal cycling, these ARP studs are precision-machined to ensure consistent torque loading and perfect cylinder head alignment. This kit is a critical upgrade for heavy-duty towing, performance diesel builds, or any standard engine refresh where long-term reliability is the priority.

• Precision-ground studs ensure uniform load distribution across the cylinder head
• Heat-treated construction for maximum tensile strength and fatigue resistance
• Includes premium parallel-ground washers for even force distribution
• Complete with high-strength nuts and all necessary hardware
• Manufacturer Part Number: 150-4069

Fits Jeep models equipped with the 4.0L Inline-6 engine. This ARP Cylinder Head Bolt Kit (MPN: 146-3601) is a critical upgrade for any engine build or head gasket replacement, providing a superior seal compared to factory torque-to-yield hardware.

Standard OE bolts are prone to stretching, which can lead to gasket failure under high combustion pressures. These ARP fasteners are cold-forged from premium 8740 chromoly steel and heat-treated to reach a 180,000 psi tensile strength rating. The precision-machined threads prevent galling and ensure consistent torque loading during assembly. The kit features a reduced-wrenching hex head design to improve clearance in the tight confines of the Jeep engine bay.

• Fabricated from 180,000 psi rated 8740 chromoly steel
• Precision-rolled threads for maximum strength and accurate torque
• Parallel-ground hardened washers included for even load distribution
• Replaces OE hardware to prevent bolt stretch and head gasket leaks
• Manufacturer Part Number: 146-3601

Fits 2003-2008 Chrysler PT Cruiser and Dodge Neon SRT-4.

The ARP 141-4204 Head Stud Kit is a critical upgrade for high-performance 2.4L engines, particularly those running increased boost levels. Unlike factory torque-to-yield (TTY) bolts that stretch during installation and must be discarded after one use, these ARP studs provide superior clamping force and are designed to prevent cylinder head lifting and head gasket failure. Precision-machined for consistent load distribution, this kit ensures the cylinder head remains securely sealed to the block under extreme combustion pressures.

• Manufacturer Part Number: 141-4204
• High-Strength Construction: Designed to exceed OEM clamping specifications for racing and street performance.
• Reusable Hardware: Unlike factory bolts, these studs can be reused after engine teardowns.
• Complete Set: Includes all necessary head studs, 12-point nuts, and hardened parallel-ground washers.

Engineered for professional builders and enthusiasts, this kit is essential for anyone pushing the limits of the SRT-4 or PT Cruiser platform.

Fits 1995-1998 Dodge Neon (ACR, Base, High Line, R/T, and Sport submodels).

The ARP 141-4202 Head Stud Kit provides the critical clamping force required to maintain a secure head gasket seal under high-stress conditions. Unlike standard factory head bolts that are prone to stretching and inconsistent loading, these ARP studs are precision-ground and heat-treated to ensure uniform torque distribution across the cylinder head. This is an essential upgrade for any performance engine build where cylinder pressures exceed stock limits.

• Manufactured from high-strength chromoly steel for maximum durability
• Threads are rolled after heat-treating for significantly improved fatigue strength
• Ensures more accurate torque preload by eliminating bolt twisting during installation
• Includes all necessary studs, parallel-ground washers, and 12-point nuts
• Manufacturer Part Number: 141-4202

Secure your engine’s top end with the ARP High Performance Series head bolt kit, specifically engineered for Big Block Chevy applications. These fasteners provide a significant upgrade over stock hardware, delivering the consistent clamping force and high tensile strength necessary to maintain a reliable head gasket seal under increased cylinder pressures.

• Manufactured from premium 8740 chrome moly steel
• Heat-treated to a 180,000 psi tensile strength rating
• Precision J-form threads rolled after heat-treatment for maximum fatigue resistance
• Reduced-wrenching hex head design for improved socket clearance near intake runners
• Includes hardened, parallel-ground washers for even load distribution
• Manufacturer Part Number: 135-3601

Fits 2004 and later Chevrolet and GM Gen III/IV LS-series small block V8 engines.

Ensure reliable cylinder head sealing with the ARP 134-3710 12-point head bolt kit. Designed specifically for the updated 2004-up blocks that utilize equal-length primary head bolts, this kit provides significantly more clamping force and consistency than factory TTY (Torque-to-Yield) fasteners. Each bolt is centerless ground to ensure perfect concentricity and heat-treated prior to thread rolling for maximum fatigue strength.

• Material: 8740 Chrome Moly Steel
• Head Style: 12-Point (reduces footprint for easier tool clearance)
• Tensile Strength: 170,000 psi
• Finish: Black Oxide
• Compatibility: For 2004+ LS blocks using all same-length primary head bolts
• MPN: 134-3710

This kit includes a complete set of cylinder head bolts and premium parallel-ground washers to service two cylinder heads. Unlike factory fasteners, these ARP bolts are reusable and do not require the TTY angle-tightening method.

Fits select 1997-2013 Cadillac CTS-V, Chevrolet Camaro, Corvette, SSR, Trailblazer, and Pontiac Firebird, G8, and GTO models.

Ensure your engine components are secured with the precision and reliability of the ARP 134-3610 Hex Head Bolt Kit. Designed specifically for the Small Block Chevy LS6 engine platform, these high-strength fasteners provide superior clamping force compared to standard factory hardware. Whether you are performing a rebuild or routine maintenance, this kit offers the durability needed for high-performance LS-based applications.

• Manufacturer Part Number: 134-3610
• Head Style: Hex Head
• Engine Platform: Small Block Chevy LS6
• Application: Engine Bolt Kit
• Compatible with select GM vehicles from 1997 to 2013

This kit is engineered to meet the strict tolerances of professional engine builders, replacing worn or stretched factory bolts with premium fasteners that stand up to the rigors of performance driving.

Fits select 1997-2013 Cadillac CTS-V, Chevrolet Camaro, Corvette, SSR, Trailblazer, and Pontiac Firebird, G8, and GTO (5.7L / 6.8L).

Engineered for high-performance applications, the ARP 134-3609 Hex Head Bolt Kit provides superior clamping force and reliability for Small Block Chevy LS1 and LS6 engines. Unlike factory torque-to-yield (TTY) bolts that must be discarded after a single use, these ARP fasteners are crafted from premium grade 8740 chrome moly steel and heat-treated to 180,000 psi tensile strength. This ensures a consistent seal between the cylinder head and engine block, preventing head gasket failure under high combustion pressures.

• Manufacturer Part Number: 134-3609
• Material: 8740 Chrome Moly Steel
• Tensile Strength: 180,000 psi
• Head Style: Traditional Hex
• Fitment: GM LS1/LS6 platforms (5.7L and 6.8L displacements)
• Finish: Black Oxide
• Includes all necessary bolts and parallel-ground washers for a complete installation

Ensure a reliable cylinder head seal on your Chevrolet Small Block engine with the ARP 134-3601 High Performance Series head bolt kit. Engineered to exceed the capabilities of factory fasteners, these bolts are essential for performance builds where maintaining head gasket integrity is critical under increased cylinder pressures.

Each bolt is manufactured from premium 8740 chrome moly steel and heat-treated to a 170,000 psi tensile strength rating. Unlike lesser fasteners, ARP threads are rolled after heat treatment, resulting in significantly higher fatigue strength. This kit features a traditional 1/2-inch hex head design, allowing for positive socket engagement and consistent torque application during the assembly process.

• Fits Chevrolet Small Block (SBC) engines
• 170,000 psi tensile strength for superior clamping force
• Precision machined from 8740 chrome moly steel
• Black oxide finish for long-lasting corrosion resistance
• Includes hardened parallel-ground washers to ensure even load distribution
• 1/2-inch hex head style
• Manufacturer Part Number: 134-3601

Upgrade your Chevrolet 4-cylinder engine's cylinder head fastening with the ARP Hex Head Stud Kit. Designed to provide superior clamping force compared to traditional head bolts, this kit is essential for high-performance builds, forced induction applications, or any engine where precise and consistent cylinder head sealing is critical.

Cylinder head studs offer significant advantages over bolts. They allow for more accurate torque readings by eliminating the torsional stress associated with tightening a bolt into the block's threads. This results in a more uniform clamping load across the head gasket, reducing the risk of leaks and head gasket failure. Additionally, using studs protects the engine block threads from wear and tear during repeated cylinder head removal and installation, a common occurrence in race or heavily modified engines.

• Features a durable hex head design for positive wrench engagement.
• Ensures consistent and accurate clamping force on your cylinder head.
• Designed specifically for Chevy 4-cylinder engine applications.
• Manufacturer Part Number: 131-4001

The ARP 130-4062 Cylinder Head Stud Kit provides the superior clamping force required to prevent head gasket failure and cylinder head lifting in Chevy/GMC 6.2L Diesel engines. Unlike standard factory bolts that twist during tightening, these studs provide more accurate torque loading by ensuring the fastener only stretches on the vertical axis.

• Engineered specifically for Chevy/GMC 6.2L Diesel applications
• Manufactured from premium 8740 chromoly steel alloy
• Heat-treated to a 200,000 psi tensile strength rating
• J-form threads rolled after heat-treatment for maximum fatigue resistance
• Includes precision-machined parallel-ground washers and high-strength nuts
• Manufacturer Part Number: 130-4062

Fits 1989-1998 Nissan 240SX (SR20DET).

The ARP 102-4701 Head Stud Kit is an essential upgrade for maintaining combustion chamber integrity in the Nissan SR20DET engine. Unlike standard torque-to-yield head bolts that stretch during installation and heat cycles, these high-strength studs provide consistent, superior clamping force across the cylinder head. This ensures a more reliable head gasket seal, particularly in turbocharged applications where increased cylinder pressures can lead to gasket failure or head lifting.

Using studs rather than bolts also allows for more accurate torque loading and makes cylinder head removal and installation easier by acting as a guide for the head and gasket. This kit is designed to handle the rigors of high-performance street and track use.

• Manufacturer Part Number: 102-4701
• Application: Nissan SR20DET engine swaps for 1989-1998 240SX
• Provides superior clamping force compared to OE head bolts
• Prevents head gasket leaks and cylinder head lifting
• Includes all necessary studs, nuts, and washers for a complete installation