Fits select 1998-2006 Audi A4, TT, and Volkswagen Beetle, Golf, Jetta, and Passat (1.8L / 1.8T).

The ARP M10 Head Stud Kit is an essential upgrade for the Volkswagen and Audi 1.8L Turbo 20V engine platform. Replacing factory stretch-style head bolts with high-strength studs ensures more consistent clamping force across the cylinder head. This helps prevent head lift and gasket failure, particularly in engines running increased boost levels or high-performance modifications.

• Engine Application: 1.8L and 1.8T 20V 4-cylinder
• Thread Size: M10
• Direct replacement for OE head bolts for improved reliability
• Includes high-quality studs, nuts, and washers
• Manufacturer Part Number: 204-4103
• Note: This kit does not include the installation tool

Fits 1997-2000 Audi A4, A4 Quattro, and Volkswagen Passat (1.8L).

The ARP Head Stud Kit (204-4101) is a critical upgrade for early AEB 1.8L Turbo 20V engines. These M11 studs provide superior clamping force compared to factory torque-to-yield (TTY) bolts, ensuring a more reliable cylinder head seal. This is especially vital for engines running increased boost levels or performance tuning where head gasket integrity is a common failure point.

By using high-strength fasteners, you eliminate the stretch associated with OEM hardware, providing more consistent loading across the head gasket surface. These studs are designed specifically for the early AEB engine architecture and do not include the installation tool.

• Manufacturer Part Number: 204-4101
• Thread Size: M11
• Engine Fitment: Early AEB 1.8L Turbo 20V
• Kit Includes: High-strength head studs, 12-point nuts, and parallel-ground washers
• Note: Installation tool not included

Fits select 1997-2006 Audi A4, TT, and Volkswagen Golf models (1.8L).

Ensure maximum clamping force and reliable cylinder head sealing with the ARP Head Bolt Kit (MPN 204-3901). Designed specifically for the Volkswagen/Audi 1.8L DOHC 20V Turbo engine, these fasteners replace factory torque-to-yield bolts that are prone to stretching under high boost or heavy load. This kit is a critical upgrade for any top-end refresh or high-performance engine build where head gasket integrity is paramount. Please note that this specific kit does not include an installation tool.

• Manufacturer Part Number: 204-3901
• Engine Compatibility: 1.8L DOHC 20V Turbo
• Kit Type: Head Bolt Set (Without Tool)
• Precision-engineered for superior tensile strength and fatigue life

Ensure maximum clamping force and head gasket integrity in your high-performance engine with the ARP Custom Age 625+ Head Stud Kit. Designed specifically for the Toyota Supra (B58), this kit is the premier solution for forced induction builds pushing extreme boost levels where factory head bolts may reach their yield point.

The Custom Age 625+ super-alloy material provides superior fatigue life and significantly higher tensile strength than standard ARP2000 or 8740 chrome moly fasteners. These studs are centerless ground to ensure perfect concentricity and are thread-rolled after heat treatment to provide the most consistent torque loading and durability possible.

• Fits Toyota Supra (B58 engine)
• Manufacturer Part Number: 203-4706
• Material: ARP Custom Age 625+ Super-Alloy
• Includes premium 12-point nuts and hardened parallel-ground washers
• Replaces factory cylinder head bolts for improved reliability
• Threads rolled after heat-treat for maximum fatigue strength

Fits Toyota Supra models equipped with the B58B30 engine.

The ARP 203-4705 12-point Head Stud Kit provides the superior clamping force necessary for high-performance B58B30 engine builds. Unlike factory torque-to-yield (TTY) bolts that stretch and require replacement after every removal, these ARP fasteners are engineered for maximum strength and reusability. This kit is a vital upgrade for maintaining a reliable head gasket seal during high-boost operation, ensuring the cylinder head remains securely fastened to the block under extreme thermal and mechanical stress.

• Manufacturer Part Number: 203-4705
• Feature: 12-point nut design for high-clearance and precise torque application
• Application: Specifically engineered for the Toyota Supra (B58B30)
• Replaces standard OEM hardware for improved reliability
• Essential for forced induction and high-compression environments
• High-strength construction to withstand increased cylinder pressures

The ARP ARP2000 12-Point Head Stud Kit (203-4704) provides the superior clamping force required for high-performance Toyota 5.7L (3UR-FE) engines. By replacing standard factory torque-to-yield head bolts with high-strength studs, this kit ensures a more consistent load across the cylinder head, preventing head gasket failure and lifting under high cylinder pressures.

• Fits Toyota 5.7L (3UR-FE) engines
• Manufactured from ARP2000 alloy with a tensile strength of 220,000 psi
• Threads are rolled after heat treatment for significantly improved fatigue life
• Centerless ground for perfect concentricity and easier installation
• Includes 12-point nuts and hardened parallel-ground washers
• Manufacturer Part Number: 203-4704

Fits 2000-2008 Toyota Celica, Matrix, and MR2 Spyder (1.8L).

Ensure your engine's head stays sealed under high combustion pressures with the ARP Head Stud Kit. Designed to replace standard factory head bolts, these studs provide significantly higher clamping force and more accurate torque readings. Whether you are performing a standard rebuild or building a high-performance 1.8L engine, these studs eliminate the risk of head gasket failure caused by bolt stretch.

• Manufacturer Part Number: 203-4703
• Engine Compatibility: Toyota 1.8L 4-cylinder
• Includes high-strength studs, parallel-ground washers, and 12-point nuts
• Precision machined for consistent clamping loads across the cylinder head
• Direct fit for factory mounting points

Fits 1993-1998 Toyota Supra (Base and Twin Turbo).

Secure your engine's top end with the ARP Under Cut Head Stud Kit, specifically engineered for the A80 generation Toyota Supra. In high-performance 2JZ applications, factory head bolts can stretch under high cylinder pressures, leading to head gasket failure. This ARP kit provides the superior clamping force needed to maintain a proper seal under boost or high-load conditions.

The "Under Cut" design of these studs allows the shank to stretch at the same rate as the threaded portion, ensuring more consistent and uniform clamping force across the cylinder head. Each kit is heat-treated and thread-rolled after heat-treat for maximum fatigue strength.

• Manufacturer Part Number: 203-4702
• Under-cut shank design for improved stretch characteristics
• Heat-treated for exceptional strength and durability
• Includes premium-quality 12-point nuts and parallel ground washers
• Fits 1993-1998 Toyota Supra (2JZ-GE / 2JZ-GTE)

Fits 1983-1992 Toyota Cressida Luxury and Supra Turbo.

Ensure your engine's cylinder head remains securely fastened under high combustion pressures with the ARP Under Cut Head Stud Kit. This kit is a critical upgrade for performance builds, replacing factory head bolts with high-strength studs that provide more consistent and reliable clamping force. The precision undercut design allows the stud to stretch more uniformly along its length, compensating for the thermal expansion found in high-performance environments and preventing head gasket failure.

• Manufacturer Part Number: 203-4701
• Specifically engineered for 1983-1992 Toyota Cressida and Supra MK3 models
• Undercut shank design ensures uniform load distribution and accurate torque loading
• Provides superior clamping force compared to standard OEM head bolts
• Complete kit includes high-strength studs, 12-point nuts, and parallel-ground washers

Fits select 2007 and later Toyota models equipped with the 2AZ-FE engine (2.4L).

Ensure maximum clamping force and head gasket integrity with the ARP 203-4306 Head Stud Kit. Designed specifically for the Toyota 2AZ-FE 2.4L engine, these studs replace the factory head bolts to prevent head lifting and gasket failure under high cylinder pressures. Unlike standard bolts that twist during torqueing, these studs remain stationary, providing more accurate torque readings and a more consistent load across the cylinder head surface.

Every stud is manufactured from premium 8740 chrome-moly alloy and heat-treated to a 200,000 psi tensile strength. The threads are rolled after heat treatment, which results in significantly higher fatigue strength compared to threads cut into the material before hardening. This kit provides the reliability needed for both high-performance builds and standard engine refreshes.

• Fits Toyota 2AZ-FE 2.4L 4-cylinder engines (2007 & later)
• Material: 8740 Chrome Moly Steel
• Tensile Strength: 200,000 psi
• Finish: Black Oxide
• Threads rolled after heat treat for maximum fatigue life
• Includes high-strength 12-point nuts and parallel-ground washers
• Manufacturer Part Number: 203-4306

Ensure superior cylinder head clamping and prevent head gasket failure on high-performance Toyota 1.6L 4AGE 20-valve engines with this ARP Head Stud Kit (203-4304). Designed to replace factory head bolts that are prone to stretching, these studs provide the consistent clamping force required for high-compression or forced induction builds.

By using studs instead of bolts, you achieve more accurate torque loading because the fastener remains stationary while the nut is tightened, eliminating the twisting force common with standard bolts. This kit is essential for maintaining a reliable seal between the head and block under extreme combustion pressures.

• Fits Toyota 1.6L 4AGE 20V (Silver Top and Black Top) engines
• Manufacturer Part Number: 203-4304
• Heat-treated and thread-rolled for maximum fatigue strength
• Includes all necessary high-strength studs, parallel-ground washers, and 12-point nuts
• Promotes easier cylinder head alignment during assembly

Fits select 2001-2013 Scion and Toyota models equipped with the 2.4L engine, including Camry, Corolla, Highlander, Matrix, RAV4, and tC.

The ARP 203-4303 Head Stud Kit provides the superior clamping force necessary to maintain a reliable seal between the cylinder head and engine block on the Toyota 2AZFE powerplant. These fasteners are a significant upgrade over factory torque-to-yield (TTY) bolts, which are prone to stretching. By using high-strength studs, you ensure more consistent torque loading and prevent head gasket failure, making this kit essential for both stock rebuilds and high-performance applications.

• Manufacturer Part Number: 203-4303
• Engine Compatibility: 2.4L 4-Cylinder (2AZFE)
• Design: Replaces factory head bolts for improved deck integrity and sealing
• Full kit includes all necessary studs and hardware for a complete installation

Ensure your cylinder head stays sealed under high-performance conditions with the ARP 2ZZGE Head Stud Kit (MPN: 203-4302). Fits select 2000-2011 Toyota Celica GTS, Corolla XRS, Matrix XRS, Lotus Elise/Exige, and Pontiac Vibe GT (1.8L). These studs provide the superior clamping force needed to prevent head gasket lift in high-compression or forced induction builds.

Unlike factory head bolts that are designed to stretch, ARP head studs are manufactured from premium 8740 chrome moly steel and heat-treated to 200,000 psi. This construction ensures consistent, repeatable torque and a reliable seal even under extreme cylinder pressures. Each stud is centerless ground for perfect concentricity and features J-form threads rolled after heat treatment for maximum fatigue strength.

• Fits 2000-2011 Toyota 2ZZGE 1.8L engines
• Material: 8740 Chrome Moly Steel
• Tensile Strength: 200,000 psi
• Includes: High-strength head studs, parallel ground washers, and 12-point chrome moly nuts
• Installation: Replaces factory head bolts to provide a more precise torque load
• Manufacturer Part Number: 203-4302

Fits 1992-2005 Lexus GS300, IS300, SC300, and Toyota Supra (2JZ-GE / 2JZ-GTE).

Designed for high-boost and extreme performance applications, the ARP Custom Age 625 Plus (CA625+) head stud kit provides the clamping force necessary to prevent head lift and gasket failure on the Toyota 2JZ platform. This kit replaces the factory cylinder head bolts with high-strength studs that offer superior fatigue life and tensile strength compared to standard ARP2000 or OE hardware.

The CA625+ super-alloy is specifically engineered to withstand high combustion pressures in turbocharged and naturally aspirated racing engines. Each kit is centerless ground to ensure perfect concentricity and heat-treated prior to thread rolling to produce the most consistent load distribution across the cylinder head.

• Manufacturer Part Number: 203-4301
• Material: Custom Age 625 Plus (CA625+) Super-Alloy
• Application: Toyota 2JZ-GE and 2JZ-GTE Engines
• Includes: Complete set of head studs, parallel-ground washers, and 12-point nuts
• Finish: Black Oxide

Fits 1988-1995 Toyota Celica All Trac and MR2 Turbo (3SGTE).

Engineered for high-boost and extreme-performance applications, the ARP CA625+ Head Stud Kit (MPN 203-4207) provides the ultimate clamping force required to prevent cylinder head lifting on the Toyota 3SGTE engine. Unlike standard factory bolts that can stretch under high cylinder pressures, these studs ensure consistent torque loading and superior gasket sealing for 1988-1992 Celica All Trac and 1991-1995 MR2 Turbo builds.

This kit is manufactured from Custom Age 625+ super-alloy, a material specifically designed to withstand the extreme thermal and mechanical stresses of high-output forced induction. Each stud is centerless ground and heat-treated prior to thread rolling to ensure maximum fatigue strength and precise tolerances.

• Material: CA625+ (Custom Age 625 Plus) super-alloy
• Yield Strength: Typically 260,000 - 280,000 psi
• Includes hardened parallel-ground washers and 12-point nuts
• Threads rolled after heat treat for superior fatigue life
• Direct upgrade for OE cylinder head hardware
• Manufacturer Part Number: 203-4207

Fits select 1971-1982 Toyota Corolla and Carina (1.6L / 1.8L).

Ensure a reliable head gasket seal and consistent clamping force with the ARP Head Stud Kit, manufacturer part number 203-4206. Specifically engineered for the Toyota 1.6L (2TC) and 1.8L (3TC) engines, this kit is a critical upgrade for high-performance builds or standard refreshes where cylinder head stability is paramount. Unlike factory head bolts that can stretch or yield, ARP studs provide superior tensile strength and more accurate torque loading to prevent head gasket failure.

The included 12-point nuts provide a larger contact area for more even distribution of the clamping load and allow for easier tool access in the tight recesses of the cylinder head casting.

• Engine Compatibility: Toyota 1.6L (2TC) & 1.8L (3TC)
• Nut Style: 12-Point
• Manufacturer Part Number: 203-4206
• Increased clamping force compared to OEM bolts
• Superior fatigue life and material strength

Vehicle Fitment

Fits 1993-1998 Toyota Supra Base and Twin Turbo models.

The ARP 203-4205 Head Stud Kit provides the superior clamping force required to maintain a reliable cylinder head seal on the 2JZ platform. These high-strength fasteners are a critical upgrade for any performance build, offering significantly more stability than factory head bolts which can stretch under high cylinder pressures, leading to head gasket failure.

By using studs rather than bolts, you ensure more accurate torque loading. The studs are threaded into the block, allowing the head to be positioned onto the studs and secured with nuts, which eliminates the twisting force applied to the fastener during the torquing process. This results in a more consistent and even distribution of pressure across the head gasket surface.

• Manufacturer Part Number: 203-4205
• Engine Platform: 2JZGE
• Fitment: 1993-1998 Toyota Supra (Base and Twin Turbo)
• Included Hardware: Full set of head studs, parallel-ground washers, and 12-point nuts

Fits 1988-1995 Toyota Celica All Trac and MR2 Turbo (2.0L DOHC).

Engineered for high-performance and turbocharged applications, this ARP Head Stud Kit provides the superior clamping force necessary to prevent cylinder head lift and gasket failure. Unlike factory head bolts that stretch during installation and heat cycles, these heat-treated studs offer consistent torque loading and easier assembly. The 12-point nut design allows for easier socket access in the compact 3S-GTE cylinder head environment.

• Manufacturer Part Number: 203-4204
• Engine Compatibility: 2.0L DOHC (3S-GTE)
• Nut Style: 12-Point
• Application: Direct replacement for OE head bolts
• Kit Includes: Complete set of head studs, 12-point nuts, and washers

Whether you are performing a standard rebuild or building a high-boost 3S-GTE, these studs provide the reliability required to maintain a perfect seal between the block and the head.

Fits 1985-1989 Toyota MR2 with 4AG 16V engines.

The ARP 203-4203 Head Stud Kit is a critical upgrade for the Toyota 4AG 16-valve engine, providing the superior clamping force necessary to prevent head gasket failure under high-load conditions. Unlike standard factory head bolts that are prone to stretching, these studs ensure a consistent and secure seal between the cylinder head and the engine block, making them essential for both high-revving naturally aspirated builds and supercharged applications.

• Manufacturer Part Number: 203-4203
• Engine Application: Toyota 4AG 16V
• Construction: Premium grade hardware designed to exceed OE fastener specifications
• Hardware Included: Complete set of head studs, parallel-ground washers, and 12-point nuts
• Installation: Direct replacement for factory head bolts

Fits select 1983-1992 Toyota Cressida and Supra Turbo (7M-GTE / 3S-GTE).

Ensure your engine's top end remains securely fastened under high boost and extreme combustion pressures with the ARP 203-4202 Head Stud Kit. These studs are designed as a direct replacement for factory head bolts, providing significantly higher clamping force to prevent head gasket failure—a critical upgrade for performance-built 7M-GTE and 3S-GTE powerplants.

Each stud is manufactured from premium 8740 chrome moly steel and heat-treated to a tensile strength of 200,000 psi. The threads are rolled after heat treatment, which creates a fastener with ten times the fatigue strength of studs threaded before heat treating. The kit includes parallel-ground washers for even load distribution and 12-point nuts for a precise, secure installation.

• Manufacturer Part Number: 203-4202
• Material: 8740 Chrome Moly Steel
• Tensile Strength: 200,000 psi
• Fastener Style: Stud
• Nut Style: 12-point
• Includes: Head studs, parallel-ground washers, 12-point nuts, and ARP Ultra-Torque assembly lubricant

Fits 1981-1984 Toyota 4Runner, Celica, and Corona models equipped with the 22R engine.

The ARP Head Stud Kit (MPN 203-4201) provides the superior clamping force required to maintain a reliable cylinder head seal. Unlike factory head bolts that are prone to stretching, these high-strength studs provide more accurate torque loading and prevent head gasket failure under increased combustion pressures. This kit is a critical upgrade for any 22R engine rebuild, whether for stock restoration or performance use.

• Specifically engineered for the Toyota 22R engine platform
• Direct replacement for OEM head bolts to ensure superior head-to-block sealing
• Manufactured by ARP to exacting tolerances for maximum durability
• Includes a complete set of studs, parallel-ground washers, and nuts
• Manufacturer Part Number: 203-4201

Fits Toyota 1NZ-FE engines (1.5L).

Secure your cylinder head with the industry standard for high-performance builds. This ARP ARP2000 series head stud kit provides significantly higher clamping force than factory torque-to-yield (TTY) bolts, preventing head lift and gasket failure in high-compression or forced induction applications. Unlike OEM bolts that stretch during installation, these studs are reusable and ensure a much more consistent load across the head gasket surface.

• Manufactured from ARP2000 alloy with a 220,000 psi tensile strength
• Threads are rolled after heat treatment for 1000% higher fatigue strength
• Centerless ground to ensure perfect concentricity
• Broached stud ends allow for easy installation in tight engine bays
• Kit includes all necessary studs, parallel-ground washers, and 12-point nuts
• Manufacturer Part Number: 203-4101

Fits 1987-1992 Toyota Supra Turbo (7M-GTE).

The ARP 203-3902 High Performance Series head bolt kit is a critical upgrade for the Toyota 7M-GTE engine, providing the superior clamping force necessary to prevent head gasket failure—a common weak point in factory 7M configurations. Unlike stock torque-to-yield (TTY) fasteners that stretch permanently and must be replaced after every use, these ARP bolts are fully reusable and engineered for high-boost applications.

Each bolt is cold-forged from premium 8740 chrome moly steel and heat-treated to reach a 180,000 psi tensile strength rating. By rolling the threads after heat treatment, ARP ensures superior fatigue resistance and thread integrity. This kit comes complete with hardened, parallel-ground washers to ensure even load distribution across the cylinder head surface.

• Fits Engine: Toyota 3.0L I6 Turbo (7M-GTE)
• Material: 8740 Chrome Moly Steel
• Tensile Strength: 180,000 psi
• Finish: Black Oxide
• Includes parallel-ground hardened washers
• Manufacturer Part Number: 203-3902

Fits 1992-1998 Toyota Paseo and Tercel (1.3L / 1.5L).

The ARP 203-3801 Head Bolt Kit is a critical upgrade for Toyota 4E and 5E series engines. Unlike standard factory fasteners that can stretch under high-load conditions, these high-strength head bolts provide superior clamping force to maintain a reliable seal between the cylinder head and the engine block. This kit is essential for both high-performance rebuilds and standard maintenance where long-term durability is a priority.

• Direct fit for Toyota 1.3L (4E-FE/FTE) and 1.5L (5E-FE/FHE) 4-cylinder engines
• Precision machined to replace OEM head bolts with improved tensile strength
• Complete kit includes premium quality bolts and parallel-ground washers
• Manufacturer Part Number: 203-3801

Vehicle Fitment:

• 1992-1998 Toyota Paseo (Base, Convertible)
• 1995-1998 Toyota Tercel (CE, DX, STD)

Fits Nissan CA16DE, CA18DE, and CA18DET engines.

Ensure maximum clamping force and head gasket integrity with the ARP Undercut Head Stud Kit. Designed specifically for the high-revving and often turbocharged Nissan CA-series engines, these fasteners replace factory head bolts to eliminate stretching and cylinder head lift during high-performance operation.

The undercut design allows the stud to stretch more uniformly under load, which provides a more consistent preload across the head gasket surface. This is critical for preventing cooling system pressurization and gasket failure under heavy boost or high-compression conditions.

• Manufacturer Part Number: 202-4702
• Application: Nissan CA16DE, CA18DE, and CA18DET engines
• Design: Undercut shank for uniform load distribution and improved elasticity
• Hardware Included: High-strength head studs, parallel-ground washers, and 12-point nuts

Fits select 2003-2006 Nissan 350Z and Infiniti G35 models equipped with the VQ35 engine.

The ARP 202-4701 Head Stud Kit is an essential upgrade for any high-performance VQ35 build. Unlike standard factory head bolts that can stretch under high cylinder pressures, these heat-treated studs provide the superior clamping force required to prevent head gasket failure and cylinder head lift. Whether you are refreshing a high-mileage engine or building a forced-induction setup, these fasteners ensure a reliable seal between the block and the head.

• Replaces factory cylinder head bolts for improved engine reliability
• Precision-machined to ensure consistent torque loading
• Manufactured from premium fastener-grade alloy
• Includes all necessary studs, washers, and nuts
• Manufacturer Part Number: 202-4701

Fits Nissan RB25 2.5L 6-cylinder engines (2.5L).

Ensure your engine remains sealed under high combustion pressures with the ARP Pro Series Cylinder Head Stud Kit. This kit replaces factory torque-to-yield head bolts, which are prone to stretching and causing head gasket failure in high-performance or forced-induction applications. By providing a consistent and superior clamping force, these studs prevent the cylinder head from lifting during high-boost cycles.

Each stud is manufactured from premium 8740 chromoly steel and heat-treated to a tensile strength of 200,000 psi. The threads are rolled after heat treatment to ensure 100% higher fatigue strength than studs threaded prior to heat treat. The kit comes complete with parallel-ground washers and 12-point nuts for precise torque loading.

• Engine Compatibility: Nissan RB25 (2.5L)
• Material: 8740 Chromoly Steel
• Tensile Strength: 200,000 psi
• Fastener Style: Stud
• Includes: 14 studs, 12-point nuts, parallel-ground washers, and ARP Ultra-Torque fastener assembly lubricant
• Manufacturer Part Number: 202-4309

Fits 1990-1996 Nissan 300ZX Base, 2+2, and Turbo models equipped with the 3.0L V6 engine.

Protect your engine from head gasket failure and head lift with the ARP Head Stud Kit. Designed to provide significantly higher clamping force than factory torque-to-yield bolts, these studs ensure a consistent and reliable seal between the cylinder head and block. This is a critical upgrade for high-performance VG30DE and VG30DETT builds, especially those running increased boost pressures or higher compression ratios.

• Precision-manufactured from high-strength alloys for superior tensile strength
• Threads are rolled after heat-treating to ensure maximum fatigue resistance
• Stud design allows for more accurate torque loading by eliminating the twisting force applied to bolts
• Includes all necessary studs, parallel-ground washers, and 12-point nuts
• Manufacturer Part Number: 202-4308

Fits select 1989-1997 Nissan 240SX, Axxess, D21, Pickup, and Stanza (2.4L KA24E SOHC).

Ensure your engine's top end stays secured under high combustion pressure with the ARP 202-4307 Head Stud Kit. A critical upgrade for any performance build or standard overhaul, these studs provide far superior clamping force compared to factory head bolts, which are prone to stretching and contributing to head gasket failure. Each stud is manufactured from premium 8740 chrome moly steel, heat-treated to 190,000 psi tensile strength, and centerless ground for perfectly concentric fitment.

• Replaces OEM head bolts to prevent head gasket lifting and cylinder head movement
• Manufactured from high-strength 8740 chrome moly steel
• Threads are rolled after heat-treat for 10x better fatigue strength
• Includes hardened parallel-ground washers and 12-point nuts
• Manufacturer Part Number: 202-4307
• Engine Application: Nissan 2.4L KA24E SOHC 12V 4-Cylinder

Fits 2009-2014 Nissan GT-R models (Base, Black Edition, Premium, and Track Edition) equipped with the VR38DETT engine.

When pushing the limits of the VR38 engine, maintaining a reliable head-to-block seal is critical to engine longevity. This ARP Custom Age 625 Plus (CA625+) head stud kit provides the extreme clamping force necessary to prevent head gasket failure and head lifting in high-horsepower, high-boost applications. These studs are a direct upgrade over factory head bolts, offering significantly higher tensile strength than standard 8740 chrome moly fasteners.

• Material: Custom Age 625 Plus super-alloy for extreme load capacity
• Tensile Strength: Rated at approximately 260,000 psi
• Precision Manufacturing: Centerless ground for perfect concentricity and thread-rolled after heat-treatment for superior fatigue resistance
• Durability: Excellent resistance to corrosion and surface pitting
• Manufacturer Part Number: 202-4305

Each kit includes a complete set of CA625+ head studs, premium parallel-ground washers, and 12-point nuts for a precise, even torque load across the cylinder head.