Best Performance Engine Head Bolt Sets of 2026

Robert Reyes Avatar
Robert Reyes
Last Updated: Jan 10, 2026

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

Performance engine head bolt sets are an essential component for any high-performance engine build. These sets are designed to provide superior clamping force and prevent head gasket failure, which can result in catastrophic engine damage. They are made from high-quality materials, such as hardened steel or titanium, and are engineered to withstand extreme temperatures and pressures. Performance engine head bolt sets are available for a wide range of applications, from street to race engines, and come in a variety of sizes and thread pitches to fit most engine configurations. Whether you're building a high-performance street machine or a full-blown race engine, a quality performance engine head bolt set is a must-have for any serious engine builder.

At a Glance: Our Top Picks

ARP Chevy LS Header Bolt Kit Cover #TOP 1
ARP Chevy LS Header Bolt Kit
ftb score rating icon 9.8
ARP Header Stud & Bolt Kit for Small Block Chevy Cover #TOP 2
ARP Header Stud & Bolt Kit for Small Block Chevy
ftb score rating icon 9.7
Spectre 4688 Differential Bolt Set Cover #TOP 3
Spectre 4688 Differential Bolt Set
ftb score rating icon 9.5

Top 10 Performance Engine Head Bolt Sets

ARP Chevy LS Header Bolt Kit

ARP
134-1102
Black
ARP Chevy LS Header Bolt Kit Cover
ARP Chevy LS 3/8in Flange Hex Header Bolt Kit

This ARP Header Bolt Kit is designed specifically for GM LS-Series engines. With a 3/8in Flange Hex design, it ensures a secure and tight fit. The package weighs only 0.6 pounds, making it lightweight and easy to handle. As a part of the Engine Head Bolt Sets category, it offers reliable performance for your vehicle.

What We Like
Designed specifically for GM LS-Series engines
3/8in Flange Hex design for a secure and tight fit
Lightweight package for easy handling
#TOP 2

ARP Header Stud & Bolt Kit for Small Block Chevy

ARP
400-1201
Silver
3/8-0.750
ARP Header Stud & Bolt Kit for Small Block Chevy Cover
ARP 4001201 Header Stud & Bolt

This header stud and bolt kit is designed for Small Block Chevy, with part number 4001201. It is vehicle specific and weighs 0.232 kilograms. The kit falls under the category of Engine Head Bolt Sets.

What We Like
Designed for Small Block Chevy
Vehicle specific
Includes both stud and bolt
#TOP 3

Spectre 4688 Differential Bolt Set

4688
Standard
Spectre 4688 Differential Bolt Set Cover
Spectre Performance 4688 Chrome Shouldered Hex Differential Bolt Set

Spectre Chrome Bolt Set is a high-quality engine head bolt set by Spectre. The bolts are zinc plated, grade 5, 3/4 In. in length, and made from top-notch material. The zinc plating ensures durability and resistance to corrosion. Grade 5 signifies strength and reliability. With a 3/4 In. length, these bolts are versatile for various applications. The high-quality material guarantees long-lasting performance, making this set a reliable choice for your engine needs.

What We Like
Durable zinc plating
Grade 5 strength
Versatile 3/4 In. length
#TOP 4

ARP 2084305 High Performance Cylinder Head Stud Kit

ARP
2084305
silver
0.625 inches UNC
ARP 2084305 High Performance Cylinder Head Stud Kit Cover
ARP 2084305 High Performance 12-Point Cylinder Head Stud Kit

This cylinder head stud kit is made in the USA and comes in a compact package. It has a 12-point design and is vehicle specific. It belongs to the category of engine head bolt sets.

What We Like
Compact package
12-point design
Vehicle specific
Made in USA
#TOP 5

ARP Pro Series Flywheel Bolt Kit for Small Block Ford

ARP
350-2802
Black
7/16 in
ARP Pro Series Flywheel Bolt Kit for Small Block Ford Cover
ARP Flywheel Bolt Kit, Pro Series, 7/16-20 in Thread, 0.925 in Long, 12 Point Head, Chromoly, Black Oxide, Small Block Ford, Set of 6

The ARP Flywheel Bolt Kit offers a reliable solution for securing your Small Block Ford flywheel. Made in the USA, this kit ensures high-quality craftsmanship you can trust. The bolts feature a 7/16-20 thread size and measure 0.925 inches long, making them ideal for a precise and secure fit. With a 12-point head design, these bolts provide better torque control and ease of installation, helping you work more efficiently. The compact packaging makes storage and handling simple, so you can keep your workspace organized while upgrading your engine components.

What We Like
Made in USA quality
Precise thread size
Optimal bolt length
12-point head design
Compact packaging
#TOP 6

ARP Chevy LS 1/4in Flange Header Bolt Kit

ARP
134-1101
Black
1/4in UNC
ARP Chevy LS 1/4in Flange Header Bolt Kit Cover
ARP (134-1101) Chevy LS 1/4in Flange Hex Header Bolt Kit

The ARP LS Header Bolt Kit is designed specifically for GM LS-Series engines, ensuring a perfect fit for your vehicle. This kit includes 1/4-inch flange hex bolts that provide a secure and reliable hold for your engine headers. With a lightweight package of just half a pound, it’s easy to handle and install. The vehicle-specific design means you don’t have to worry about compatibility issues, making your upgrade process smoother and more efficient.

What We Like
Vehicle-specific fit
Durable 1/4-inch flange bolts
Lightweight packaging
Trusted ARP brand quality
#TOP 7

ARP Bellhousing Bolt Kit LS-Series 134-0901

ARP
134-0901
Black
Black
ARP Bellhousing Bolt Kit LS-Series 134-0901 Cover
ARP 134-0901 Bellhousing Bolt Kit, Black

The ARP Bellhousing Bolt Kit is designed specifically for GM LS-Series engines, making it a perfect fit if you own one of these vehicles. This kit includes strong hex head bolts coated in black oxide, which helps prevent rust and wear, ensuring long-lasting durability. Weighing just under 0.3 kilograms, the kit is lightweight yet reliable, making installation easier and more convenient for you. With the ARP Bellhousing Bolt Kit, you get vehicle-specific parts that provide a secure and precise fit, helping your engine perform better and stay safe.

What We Like
Vehicle-specific fit
Durable black oxide coating
Lightweight design
Hex head bolt style
Reliable brand quality
#TOP 8

ARP 6511250 5/16"-18 x 1.25" Hex Bolt

ARP
651-1250
1.25 inches
ARP 6511250 5/16"-18 x 1.25" Hex Bolt Cover
ARP 6511250 5/16"-18" x 1.250" Hex Black Bolt

The ARP Hex Bolt 6511250 is a reliable fastener designed for performance engine head applications. Its compact packaging, measuring approximately 14.2 cm in height, 0.5 cm in length, and 10.7 cm in width, makes it easy for you to store and handle. Made in the USA, this bolt ensures quality craftsmanship and durability, giving you confidence in its performance. As a hex bolt, it offers a secure and tight fit, which is essential for maintaining engine integrity. With the specific part number 6511250, you can easily identify and order the exact bolt you need for your engine projects.

What We Like
Compact packaging
Made in the USA
Hex bolt design
Clear part identification
#TOP 9

ARP 8mm x 1.25 Thread Chromoly Bolt Set

ARP
ARP-671-1002
Black
M8 x 1.25
ARP 8mm x 1.25 Thread Chromoly Bolt Set Cover
ARP Bolt, 8 mm x 1.25 Thread, 25 mm Long, 10 mm 12 Point Head, Chromoly, Black Oxide, Universal, Set of 5

The ARP Chromoly Bolt Set is designed to provide reliable performance for your engine needs. Each bolt measures 8 mm in diameter with a 1.25 thread pitch, ensuring a precise fit for your application. At 25 mm long, these bolts offer the right length for secure fastening. The 10 mm 12-point head design allows for better grip and easier installation or removal. Made from chromoly steel and finished with a black oxide coating, these bolts are both durable and resistant to corrosion. As a set of five, this product gives you enough bolts for multiple uses or replacements, all made in the United States for quality assurance.

What We Like
Durable chromoly steel
Corrosion-resistant black oxide finish
Precise 8mm x 1.25 thread
Convenient 10mm 12-point head
Set of five bolts
#TOP 10

ARP 400-1101 Head Stud & Bolt

ARP
400-1101
3/8-16 UNC
ARP 400-1101 Head Stud & Bolt Cover
ARP 400-1101 Head Stud & Bolt

Upgrade your engine with the ARP Head Stud & Bolt set. Designed specifically for small block Chevy engines, this kit is a perfect fit for your vehicle. With a package weight of only 0.55 pounds, it is lightweight and won't add unnecessary weight to your engine. The ARP Head Stud & Bolt set is made by the trusted brand ARP, ensuring high quality and durability. These head studs and bolts are essential for securing the engine head, providing a secure and reliable connection. Invest in the ARP Head Stud & Bolt set to enhance the performance and reliability of your engine.

What We Like
Vehicle-specific
Lightweight
High quality
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What do performance head studs do?

Performance head studs are designed to provide a strong and precise torque for the head of an engine. Unlike bolts, studs do not stretch and are made of a high tensile strength alloy. They feature a fine thread nut on the top, allowing for a more accurate torque of the head.

2. How much torque do you need for engine head bolts?

When tightening engine head bolts, it is recommended to use 12-15 foot pounds of torque. This torque level ensures that the bolts are securely fastened without causing any damage to the engine.

3. What is better head bolts or studs?

Studs are generally considered better than bolts for engine head fastening. This is because studs are less likely to twist during torquing, resulting in a more consistent torque loading. However, bolts may be more suitable in situations where there are clearance issues. Bolts are also more affordable and easier to use in certain installations.

4. How many times can you use cylinder head bolts?

Cylinder head bolts that are torque-to-yield (TTY) should not be reused. These bolts are designed to be stretched past their spring back point during the first installation, providing a more even load. Reusing TTY bolts can compromise their clamping force and may lead to breakage or failure.

5. What is the difference between ARP 8740 and 2000 head studs?

ARP 8740 and 2000 head studs have similar characteristics, but ARP 2000 is capable of achieving a higher clamp load at 220,000 psi. ARP 2000 studs are commonly used in short track and drag racing as an upgrade from 8740 chrome moly studs, suitable for both steel and aluminum rods.

6. Do bigger bolts require more torque?

Yes, larger bolts generally require more torque to achieve the necessary clamping force. The increased size of the bolt means that more force is required to tighten it adequately.

7. Should I torque the nut or bolt head?

The choice of torquing the nut or bolt head depends on the specific application and the condition of the materials being fastened. In most situations, torque can be applied to either the nut or the bolt head. Both methods will result in a tight connection, and the choice does not significantly impact the risk of breakage.

8. What happens if you reuse torque-to-yield head bolts?

Reusing torque-to-yield (TTY) head bolts is not recommended. TTY bolts are designed to stretch during their initial use, providing a better and more uniform seal. Reusing these bolts can compromise their strength and clamping force, potentially leading to breakage or shearing off.

Editor's Notes

During our performance engine head bolt set research, we found 24 performance engine head bolt set products and shortlisted 10 quality products. We collected and analyzed 6,875 customer reviews through our big data system to write the performance engine head bolt sets list. We found that most customers choose performance engine head bolt sets with an average price of $24.00.

The performance engine head bolt sets are available for purchase. We have researched hundreds of brands and picked the top brands of performance engine head bolt sets, including ARP, Spectre. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
Robert Reyes Avatar

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.