Ensure your engine's cylinder head stays properly sealed under high combustion pressures with the ARP 12pt. Head Stud Kit (202-4304). This kit is engineered specifically for the Nissan 2.4L KA24DE engine, providing a significant upgrade over factory head bolts. By using studs rather than bolts, you achieve more accurate and consistent torque loading, which protects the head gasket and prevents cylinder head lift in high-performance or high-mileage applications.

Fits select 1991-2004 Nissan 240SX, Altima, Frontier, and Xterra (2.4L).

• Manufacturer Part Number: 202-4304
• Engine Type: Nissan 2.4L KA24DE
• Nut Style: 12-point (12pt.)
• Benefit: Superior clamping force and more accurate torque readings compared to OE bolts
• Application: Direct replacement for factory head fasteners

Fits Nissan Pulsar GTi-R models equipped with the SR20DET engine utilizing 12mm head bolts.

The ARP 202-4303 head stud kit is a critical upgrade for high-performance SR20DET builds, specifically the Pulsar GTi-R variant which requires 12mm studs rather than the standard 11mm found in other chassis. These studs provide the uniform clamping force necessary to prevent head gasket failure and cylinder head lifting under high boost pressures and increased combustion temperatures.

Each stud is manufactured from premium 8740 chromoly steel, heat-treated to a 200,000 psi tensile strength rating. The threads are rolled after heat treatment to ensure superior fatigue strength and precision fitment. This kit includes all necessary hardware to replace the factory head bolts, providing a more reliable seal for the cylinder head to the engine block.

• Manufacturer Part Number: 202-4303
• Material: 8740 Chromoly Steel
• Tensile Strength: 200,000 psi
• Thread Size: 12mm
• Includes: High-strength studs, 12-point nuts, and parallel ground washers
• Recommended for high-performance and forced induction applications

Fits 1988-1989 Nissan Pulsar NX SE (CA18DE/DET).

Ensure maximum reliability for your engine with the ARP Head Stud Kit (MPN: 202-4302). Designed specifically for the Nissan CA18DE and CA18DET platforms, these studs provide the superior clamping force necessary to prevent cylinder head lift and head gasket failure. This kit is a critical upgrade for high-compression or turbocharged builds where factory head bolts are prone to stretching under increased cylinder pressures.

Every ARP fastener is heat-treated to ensure exceptional tensile strength and centerless ground to achieve a perfectly concentric fit. Unlike OEM bolts that are tightened to a yield point, these studs provide a consistent load for more accurate torque readings and can be reused through multiple engine teardowns.

• Manufacturer Part Number: 202-4302
• Engine Compatibility: Nissan CA18DE / CA18DET
• Material: High-strength heat-treated alloy
• Includes: Full set of head studs, parallel-ground washers, 12-point nuts, and fastener assembly lubricant
• Replaces factory cylinder head bolts for improved sealing and durability

Fits Nissan RB20, RB20DET, RB25, and RB25DET engines.

Prevent head gasket failure and cylinder head lifting with the ARP 202-4301 head stud kit. Unlike standard torque-to-yield OEM head bolts that can stretch under high combustion pressures, these high-performance studs provide the consistent clamping force required for high-boost and high-horsepower RB-series builds. By using studs instead of bolts, you ensure more accurate torque loading and easier cylinder head alignment during assembly.

• Material: Manufactured from premium 8740 chrome moly steel for superior strength.
• Tensile Strength: Heat-treated to 200,000 psi to handle extreme internal pressures.
• Precision Threading: J-form threads are rolled after heat treatment for maximum fatigue resistance.
• Hardware: Includes precision-ground parallel washers and 12-point nuts for even load distribution.
• Installation: Direct replacement for factory head bolts; includes ARP Ultra-Torque fastener assembly lubricant.
• Manufacturer Part Number: 202-4301

Secure your cylinder head against extreme combustion pressures with the ARP Custom Age 625+ Head Stud Kit, specifically engineered for the Nissan RB26DETT engine. While standard ARP 2000 fasteners are suitable for many builds, this Custom Age 625+ series is designed for high-boost, competition-level applications where maximum clamping force is non-negotiable.

This super-alloy material provides a typical tensile strength of 260,000 to 280,000 psi, significantly exceeding standard head bolt capabilities to prevent head gasket failure and cylinder head lift. Each stud is centerless ground to ensure perfect concentricity and heat-treated before thread rolling for superior fatigue strength.

• Fits Nissan Skyline GT-R models equipped with the RB26DETT engine
• Material: ARP Custom Age 625+ Super-Alloy
• Tensile Strength: 260,000–280,000 psi
• Fastener Style: 12-Point Nuts
• Includes: Complete set of head studs, parallel-ground washers, 12-point nuts, and ARP Ultra-Torque Fastener Assembly Lubricant
• Manufacturer Part Number: 202-4208

Secure your cylinder head and prevent head gasket failure under high boost with the ARP 202-4207 head stud kit, specifically engineered for the Nissan RB26DETT engine. These studs are a critical upgrade for any performance build, providing significantly more clamping force than factory head bolts to prevent the head from lifting during high cylinder pressure events.

Manufactured from proprietary ARP2000 alloy, these fasteners are heat-treated to a tensile strength of approximately 220,000 psi. The threads are rolled after heat treatment, which improves fatigue life by up to 10 times compared to fasteners threaded before heat treat. This kit comes complete with premium-quality parallel ground washers and 12-point nuts to ensure even load distribution across the cylinder head.

• Fits Nissan RB26DETT engines (found in Skyline GT-R R32, R33, and R34)
• Material: ARP2000 High-Strength Alloy
• Tensile Strength: 220,000 psi
• Thread-rolled after heat treat for maximum fatigue resistance
• Includes 12-point nuts and parallel ground washers
• Manufacturer Part Number: 202-4207

Fits 1970-1983 Nissan 240Z, 260Z, 280Z, 280ZX, 810, and Maxima models equipped with L24, L26, and L28 inline-six engines.

Ensure superior cylinder head sealing and protect your engine block with this ARP Head Stud Kit (MPN 202-4206). Designed for the high-performance demands of the Nissan L-series engine, these studs provide significantly more consistent and reliable clamping force than factory head bolts. By using studs instead of bolts, you achieve more accurate torque loading and reduce wear on the block's internal threads during assembly, making this an essential upgrade for both standard rebuilds and high-compression or forced induction builds.

• Engineered specifically for Nissan L24, L26, and L28 engine blocks
• Provides higher tensile strength than OE fasteners to prevent head lifting
• Thread-rolled and heat-treated for maximum fatigue resistance
• Complete kit includes high-strength studs, parallel-ground washers, and 12-point nuts
• Manufacturer Part Number: 202-4206

Fits select 1975-1982 Nissan 210, 310, B210, and F10 models equipped with the A14 engine.

The ARP 202-4203 12-point cylinder head stud kit provides the superior clamping force required to maintain head gasket integrity in Nissan A-series engines. Unlike factory head bolts that can stretch or yield under thermal expansion and high-combustion loads, these head studs are engineered for consistent torque loading and increased fatigue strength. By using studs rather than bolts, you ensure the cylinder head is properly aligned and the threads in the engine block are protected from wear during assembly.

• Replaces OEM cylinder head bolts with high-strength studs
• Thread-rolled after heat-treating for maximum fatigue life
• Includes compact 12-point nuts for easier socket access in tight spaces
• Includes hardened parallel-ground washers for even load distribution
• Manufacturer Part Number: 202-4203

Fits select 1974-1980 Nissan 200SX, 510, 610, 620, 710, and 720 models equipped with the L20 engine.

The ARP 202-4201 12pt Head Stud Kit is a vital upgrade for maintaining cylinder head integrity on the Nissan L20 engine. Unlike factory head bolts that are designed to stretch once and be replaced, these ARP studs are manufactured from high-strength material to provide consistent, uniform clamping force. This prevents head lift and gasket failure, making them essential for both stock rebuilds and performance applications.

Each stud is centerless ground and thread-rolled after heat-treatment to ensure maximum fatigue strength. The 12-point nut design provides a compact profile for better tool clearance and more precise torque application compared to traditional hex-head fasteners.

• Manufacturer Part Number: 202-4201
• Fastener Style: 12-Point Nut
• Application: Nissan L20 Engine
• Includes: Head studs, 12-point nuts, and parallel-ground washers
• Construction: Premium heat-treated alloy steel

Fits BMW B58 engines (3.0L).

The ARP 201-4701 Head Stud Kit is a critical upgrade for high-performance BMW B58 3.0L engines. Designed to replace factory torque-to-yield (TTY) head bolts, these studs provide the superior clamping force required to maintain a reliable head gasket seal under the increased cylinder pressures of high-boost or high-compression applications. Unlike OE bolts that must be discarded after a single use, these ARP2000 studs are reusable and offer more accurate torque loading during engine assembly.

• Manufactured from high-strength ARP2000 alloy
• 12-point nuts for easier socket access in compact cylinder head areas
• Threads are rolled after heat-treatment for maximum fatigue resistance
• Provides more consistent clamping force than factory fasteners
• Includes premium parallel-ground washers and assembly lubricant
• Manufacturer Part Number: 201-4701

Fits 1988-1991 BMW M3 Base (2.3L S14).

This ARP Head Stud Kit is a critical upgrade for the BMW S14 4-cylinder engine. Designed to provide superior clamping force compared to factory torque-to-yield bolts, these studs ensure consistent loading across the cylinder head to prevent head gasket failure and head lift during high-performance operation. This kit replaces worn or stretched OE hardware with high-strength fasteners that are essential for any engine rebuild or refresh.

• Precision fitment for the BMW 2.3L S14 engine
• Includes all necessary high-strength studs, nuts, and hardened washers
• Designed for repeatable and accurate torque readings
• Manufacturer Part Number: 201-4605

Fits 1985-1993 BMW 535i, 535is, 635CSi, 735i, and 735iL models.

Maintain precise cylinder head alignment and superior gasket sealing with the ARP Head Stud Kit (MPN 201-4602). This kit replaces the original factory head bolts to provide more consistent clamping force across the cylinder head. By using studs rather than bolts, you ensure the head is properly loaded without the risk of the fastener twisting into the block, which is essential for preventing head gasket failure and ensuring long-term engine reliability during high-stress operation.

• Engineered for high-strength cylinder head fastening
• Delivers more uniform torque loading than factory head bolts
• Includes all necessary studs, washers, and nuts for a complete installation
• Manufacturer Part Number: 201-4602

Fits select 1966-1983 BMW 2002 and 320i models including Base, Cabriolet, Turbo, ti, and tii.

The ARP 201-4601 Head Stud Kit is a critical upgrade for maintaining cylinder head integrity on vintage BMW engines. Unlike factory stretch bolts that can yield under high cylinder pressures, these studs provide the consistent and precise clamping force required to prevent head gasket failure. This kit is essential for any performance rebuild, high-compression build, or forced induction application where reliability is paramount.

• Manufacturer Part Number: 201-4601
• Application: Select BMW 1966-1983 2002 and 320i
• Includes high-strength studs, parallel-ground washers, and 12-point nuts
• Designed to deliver superior clamping force compared to OE hardware
• Reusable and ideal for race or high-performance street use

Secure your BMW S65 4.0L V8 engine against head gasket failure and cylinder head lift with this ARP Pro Series head stud kit. These fasteners provide significantly more uniform clamping force than standard OE torque-to-yield (TTY) bolts, making them essential for high-performance builds, track use, or forced induction applications.

Each stud is manufactured from premium 8740 chrome moly steel and heat-treated to a 200,000 psi tensile strength. ARP uses a centerless grinding process to ensure the studs are perfectly concentric and rolls the J-form threads after heat treatment for superior fatigue resistance. The kit includes hardened parallel-ground washers and 12-point nuts to ensure precise torque loading and even distribution across the cylinder head.

• Manufacturer Part Number: 201-4307
• Engine Fitment: BMW S65 (4.0L) V8
• Material: 8740 Chrome Moly Steel
• Tensile Strength: 200,000 psi
• Finish: Black Oxide
• Features: Rolled threads after heat treat for maximum strength
• Includes: Complete set of studs, 12-point nuts, and hardened washers

Ensure maximum clamping force and prevent head gasket failure on your BMW S1000RR with the ARP Cylinder Head Stud Kit (MPN: 201-4306). Designed specifically for high-performance motorcycle engines, these studs provide a significant upgrade over factory yield-to-torque bolts, offering the structural integrity needed for high-compression or forced induction builds.

Every ARP stud is centerless ground to ensure perfect concentricity and heat-treated prior to thread rolling. This specialized process results in a fastener with significantly better fatigue strength compared to lower-grade alternatives. Rated at 200,000 psi tensile strength, this kit provides consistent load distribution across the cylinder head to prevent lifting under extreme thermal and mechanical stress.

• Direct fit for BMW S1000RR engines
• Manufactured from premium 8740 chrome moly steel
• Rated at 200,000 psi tensile strength
• Precision J-form threads rolled after heat-treatment for maximum fatigue life
• Kit includes high-strength studs, parallel-ground washers, and 12-point nuts
• Manufacturer Part Number: 201-4306

Fits 1987-1991 BMW 325i, 325is, and 325iX models equipped with the 2.5L M20 6-cylinder engine.

The ARP 201-4305 Head Stud Kit is a critical upgrade for the BMW M20 engine, providing significantly more consistent clamping force than factory stretch bolts. By utilizing studs rather than bolts, this kit ensures accurate torque loading and protects the engine block threads from wear during assembly. This is an essential installation for any high-performance E30 build to prevent head gasket failure under increased cylinder pressures.

• Manufacturer Part Number: 201-4305
• Engine Fitment: BMW M20 2.5L 12V SOHC
• Includes high-strength head studs, parallel-ground washers, and 12-point nuts
• Replaces factory torque-to-yield (TTY) head bolts
• Reusable fasteners for easier top-end maintenance

Fits BMW N12, N14, N16, and N18 engines (1.6L).

The ARP Head Stud Kit (201-4304) is an essential upgrade for engine builds requiring superior clamping force and reliability. Unlike factory torque-to-yield (TTY) bolts that stretch during installation and must be discarded after one use, these premium studs provide a more accurate torque loading on the cylinder head. This prevents head lift and gasket failure, particularly in high-compression or turbocharged applications where cylinder pressures exceed stock limits.

Manufactured to exacting tolerances, each kit includes high-strength studs, precision-machined parallel ground washers, and 12-point nuts. This hardware ensures even distribution of clamping force across the deck surface, protecting the engine block threads while facilitating easier cylinder head removal and reinstallation.

• Manufacturer Part Number: 201-4304
• Engine Fitment: BMW N12, N14, N16, and N18 (1.6L 4-Cylinder)
• Replaces factory TTY bolts for improved head gasket sealing
• Includes all necessary studs, 12-point nuts, and washers
• Engineered for consistent clamping force and durability

Fits 2001-2006 BMW M3 Base models equipped with the S54 engine.

The ARP 201-4303 head stud kit provides the superior clamping force required to maintain a reliable head gasket seal in the high-performance S54 engine. Essential for high-compression or forced induction builds, these studs eliminate the stretch associated with factory torque-to-yield bolts, preventing cylinder head lift under extreme combustion pressures. This kit is a direct-fit upgrade that ensures long-term engine durability and more accurate torque loading.

• High-strength fasteners designed specifically for the BMW S54 platform
• 12-point nut design for easy socket access and consistent torque application
• Heat-treated for maximum fatigue strength and centerless ground for perfect concentricity
• Reusable design provides a significant advantage over one-time-use OE bolts
• Manufacturer Part Number: 201-4303

Fits 1995 BMW M3 Base and Lightweight models (2.5L).

The ARP Head Stud Kit for the 1995 BMW M3 (2.5L) provides the superior clamping force necessary to maintain a perfect cylinder head seal under high combustion pressures. Unlike factory torque-to-yield (stretch) bolts that must be discarded after every use, these ARP studs are reusable and offer a more consistent load across the head surface by utilizing a fine-thread nut on the top side of the stud. This design prevents the friction caused by twisting a bolt into the block under tension, ensuring more accurate torque readings.

• Engineered specifically for the 2.5L M50-based engine found in the 1995 BMW M3.
• Features 12-point nuts for increased socket clearance and more precise torque application.
• Complete kit includes all necessary studs, 12pt nuts, and washers.
• Manufacturer Part Number: 201-4302

Fits 2002-2008 Mini Cooper S and S Clubman.

The ARP 201-4301 Cylinder Head Stud Kit is a vital upgrade for ensuring long-term engine reliability. Unlike factory torque-to-yield (TTY) bolts that stretch during installation and must be discarded, these ARP studs provide a much more consistent clamping force across the cylinder head. This superior clamping is essential for preventing head gasket failure, especially in forced-induction engines where increased cylinder pressures can lead to head lifting.

Each stud is centerless ground and manufactured from premium 8740 chromoly steel, heat-treated to a 200,000 psi tensile strength. The threads are rolled after heat treatment, which provides significantly better fatigue strength than studs with threads cut before hardening. This kit includes all hardware required to replace the OE fasteners, including precision parallel-ground washers and 12-point nuts.

• Manufacturer Part Number: 201-4301
• Material: 8740 Chromoly
• Tensile Strength: 200,000 psi
• Fastener Style: Stud
• Nut Style: 12-point
• Includes: Studs, 12-point nuts, parallel-ground washers, and ARP Ultra-Torque assembly lubricant

Fits Sea-Doo RXP-X 255 personal watercraft models.

High-performance personal watercraft engines demand superior clamping force to maintain head gasket integrity, especially under the increased cylinder pressures of a supercharged 255-series engine. This ARP (168-4201) Engine Head Stud Kit replaces the factory torque-to-yield bolts with high-strength studs that provide more consistent torque loading and prevent head lifting.

Each fastener is manufactured from premium 8740 chromoly steel and heat-treated to a 200,000 psi tensile strength rating. Unlike lesser fasteners, ARP threads are rolled after heat treatment, which provides significantly better fatigue resistance. This kit is essential for any performance build or engine rebuild where reliability is the priority.

• Manufacturer Part Number: 168-4201
• Material: 8740 Chromoly Steel
• Tensile Strength: 200,000 psi
• Thread Type: Precision J-form rolled threads
• Includes: High-strength head studs, parallel-ground washers, 12-point nuts, and ARP Ultra-Torque fastener assembly lubricant

Fits select 1989-2009 Land Rover Defender 90/110, Discovery, and Range Rover models with 3.9L or 4.6L V8 engines and 10-bolt cylinder heads.

Protect your engine's head gasket integrity with the ARP 157-4301 Head Stud Kit. Unlike standard torque-to-yield head bolts that stretch and provide uneven clamping force, these ARP studs are designed to provide a precise, consistent load across the cylinder head. This is a critical upgrade for any Rover V8 rebuild, ensuring the heads remain securely seated even under increased thermal stress or high-performance use.

These studs are manufactured from premium 8740 chrome moly steel, heat-treated to 200,000 psi tensile strength, and centerless ground to ensure perfect concentricity. The threads are rolled after heat-treat, which gives them significantly more fatigue strength than threads cut into softer material. This kit includes all necessary hardware for a complete installation on 10-bolt heads.

• Manufacturer Part Number: 157-4301
• Material: 8740 Chrome Moly Steel
• Tensile Strength: 200,000 psi
• Head Style: 12-Point Nuts
• Includes: Studs, parallel-ground washers, and nuts
• Configuration: Designed specifically for 10-bolt head patterns

Ensure maximum cylinder head sealing and protect your engine against head gasket failure with the ARP 156-4301 Ford Modular 12-Point Head Stud Kit. Designed as a superior alternative to factory torque-to-yield (TTY) bolts, these studs provide the consistent, high-load clamping force necessary for high-performance, high-compression, or forced-induction builds.

By using studs instead of bolts, you ensure the cylinder heads and gaskets are perfectly aligned during assembly while protecting the threads in your engine block from excessive stress. The included 12-point nuts feature a reduced-wrenching profile, offering vital socket clearance in the tight casting areas of Ford Modular heads for more accurate torque application.

• Fits Ford Modular 4.6L 2-valve (2V) and 4-valve (4V) engines
• Replaces factory head bolts to prevent head lifting under high cylinder pressure
• 12-point nuts provide easier tool access in confined engine bays
• Precision machined for uniform load distribution across the head surface
• Includes high-quality studs, washers, nuts, and assembly lubricant
• Manufacturer Part Number: 156-4301

Ensure bottom-end stability in your Ford Modular engine with the ARP 156-4101 Hex Head Main Stud Kit. Engineered for high-performance 4.6L 2V and 4V applications, these studs provide significantly more clamping force than factory bolts, preventing main cap walk and protecting your bearings during high-RPM use or under boost.

• Fits Ford Modular 4.6L 2V and 4V engines
• Manufactured from premium 8740 chrome moly steel
• Heat-treated to a 200,000 psi tensile strength rating
• Thread-rolled after heat treatment for superior fatigue resistance
• Threads are J-form for maximum engagement and strength
• Kit includes high-quality parallel-ground washers and hex nuts
• Manufacturer Part Number: 156-4101

Fits Big Block Ford 390-428 FE Series engines.

Ensure your cylinder heads stay properly seated with the ARP 155-3601 High Performance Series head bolt kit. This kit provides the superior clamping force and consistent torque loading required for high-stress applications, offering a significant upgrade over factory hardware. Each bolt is designed to prevent head gasket failure by maintaining a precise seal even under increased combustion pressures.

• Manufacturer Part Number: 155-3601
• Material: Premium 8740 chrome moly steel alloy
• Tensile Strength: Rated at 170,000 psi for exceptional reliability
• Manufacturing: Heat-treated before thread rolling to ensure maximum fatigue strength
• Finish: Durable black oxide coating to protect against corrosion
• Includes: Complete set of head bolts and hardened parallel-ground washers

Secure your engine's top end with the ARP 154-4005 Pro Series Head Stud Kit, engineered specifically for Ford 289 and 302 small block engines utilizing 351 Windsor (351W) cylinder heads. This kit provides the superior clamping force and consistent loading required to prevent head gasket failure and cylinder head lift in high-performance applications.

Unlike standard head bolts that twist during the torquing process, these studs are installed into the block first, allowing the nuts to be torqued to precise specifications without friction-induced torsion. This design protects the threads in your engine block and ensures a more accurate, repeatable load across the entire deck surface. Each stud is centerless ground to ensure perfect concentricity and heat-treated before thread rolling for maximum fatigue strength.

• Manufacturer Part Number: 154-4005
• Fastener Diameter: 7/16 inch
• Material: 8740 Chrome Moly Steel
• Tensile Strength: 200,000 psi
• Finish: Black Oxide
• Nut Style: 12-Point
• Kit Includes: Full set of head studs, parallel-ground washers, and nuts

Fits Ford 289 and 302 Small Block engines equipped with 7/16-inch cylinder head fasteners.

The ARP 154-4001 Cylinder Head Stud Kit is a critical upgrade for any performance Ford 289 or 302 build. Unlike standard head bolts that twist as they are torqued, these studs are threaded into the block first, allowing the head to be positioned accurately. This ensures the fastener is stretched only on its vertical axis, providing much more consistent and accurate clamping force across the head gasket surface.

By utilizing studs, you protect the internal threads of your engine block from excessive wear during assembly and teardown. This kit features high-strength fasteners and standard hex nuts, providing the clearance and reliability needed for high-compression or street-performance applications.

• Fits Ford 289-302 Small Block engines
• Fastener Diameter: 7/16 inch
• Nut Style: Hex Head
• Ensures superior head gasket alignment and sealing
• Manufacturer Part Number: 154-4001

Ensure a reliable cylinder head seal on your Small Block Ford with the ARP High Performance Series head bolt kit. Engineered specifically for Ford 289 and 302 engines, these fasteners replace factory hardware with high-tensile 8740 chrome moly steel to provide the consistent clamping force required for performance builds.

Each bolt is heat-treated to a 170,000 psi tensile strength rating and thread-rolled after heat treatment to ensure superior fatigue resistance. The compact 12-point head design offers a smaller footprint than standard hex heads, facilitating better tool clearance around the valvetrain and enabling more precise torque application during assembly.

• Fits Ford 289 and 302 Small Block V8 engines
• Compact 12-point head style for improved socket clearance
• Manufactured from premium 8740 chrome moly steel
• Rated at 170,000 psi tensile strength
• Includes parallel-ground hardened washers for uniform load distribution
• Manufacturer Part Number: 154-3701

Ensure superior cylinder head sealing on your Ford 351 Windsor engine with this ARP High Performance Series head bolt kit. Designed to outperform factory hardware, these bolts provide the consistent clamping force necessary to prevent head gasket failure under high combustion pressures. They are an essential upgrade for any SBF rebuild or performance application.

Each bolt is cold-forged from premium 8740 chrome moly steel and heat-treated to a 170,000 psi tensile strength rating. The threads are rolled after heat-treating, which significantly improves fatigue strength compared to bolts with threads cut before heat-treat. This kit features a traditional hex head design for easy socket access and includes hardened parallel-ground washers to ensure even load distribution.

• Fits Ford 351W (Windsor) small block engines
• Material: 8740 Chrome Moly Steel
• Tensile Strength: 170,000 psi
• Head Style: Hex Head
• Finish: Black Oxide
• Includes: Complete set of bolts and hardened washers
• Manufacturer Part Number: 154-3603

Ensure reliable cylinder head sealing on your Small Block Ford 289 or 302 engine with the ARP 154-3601 Standard Head Bolt Kit. Engineered to significantly outperform factory hardware, these bolts provide the consistent clamping force required for high-performance street and mild race applications, preventing head gasket failure under increased cylinder pressures.

Constructed from premium 8740 chrome moly steel and heat-treated to a 170,000 psi tensile strength rating, these bolts are much stronger than standard Grade 8 fasteners. Each bolt is precision centerless ground and thread rolled after heat treatment to ensure superior fatigue strength and accurate torque readings. This kit features a classic hex head design and includes the necessary hardened, parallel-ground washers to protect your cylinder heads and ensure even load distribution across the casting.

• Fits Small Block Ford 289 and 302 V8 engines
• Manufactured from 8740 chrome moly alloy steel
• 170,000 psi tensile strength rating
• Precision centerless ground for perfect concentricity
• Hex head drive style for easy installation
• Includes hardened washers and instructions
• Manufacturer Part Number: 154-3601