Looking for the best performance bolts to upgrade your engine? We’ve curated a list of the top 10 options to help you find the perfect fit for your build.
Upgrading your engine starts with the right bolts. Performance bolts are the unsung heroes of any build, ensuring your engine stays strong under pressure. Whether you’re restoring a classic or boosting a modern machine, the right bolts make all the difference.
Top brands like ARP and Spectre Performance offer durable, high-quality options. These bolts are designed to handle extreme conditions, from street driving to racing. With precision engineering, they deliver the reliability you need.
Choosing the best bolts can feel overwhelming, but we’ve got you covered. Our guide breaks down the top choices, so you can make an informed decision. Let’s dive in and find the perfect fit for your engine!
List of Top 10 Performance Bolts
| Image | Title | Best For | Price |
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Small Block V8 Performance Head Bolt Set | Heavy Duty 180,000 PSI Material | Complete Engine Bolts (1966-1997) |
This Small Block V8 Performance Head Bolt Set is perfect for car enthusiasts and mechanics who want reliable engine upgrades. It’s ideal for 1966-1997 Small Block V8 engines, offering durable, high-performance bolts for smooth rebuilds or upgrades. |
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ARP 134-3601 1343601 High Performance Series Cylinder Head Hex Bolts |
This ARP 134-3601 kit is perfect for car lovers who want strong, reliable parts. It’s great for Small Block Chevy engines, giving you peace of mind during high-performance drives. |
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ARP 134-3609 Head Bolt Kit |
The ARP 134-3609 Head Bolt Kit is perfect for anyone who wants strong, reliable parts for their street, offroad, or Powersports vehicle. It’s ideal for those who trust ARP’s precision and quality. |
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ARP 134-6006 Rod Bolt Kit |
This ARP 134-6006 Rod Bolt Kit is perfect for car owners who want reliable auto parts. It’s made in the United States and easy to handle, weighing just 3.0 lbs. |
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Performance Tool W5331 240-Piece Metric Nuts and Bolts Assortment Kit |
This kit is perfect for shops, repair work, and home fixes that need common nuts, bolts, and washers. The resealable case keeps all 240 pieces neat and ready to use. |
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Michigan Motorsports LS Head Bolt Kit | Fits 2004-2013 GM LS Engines | 4.8L 5.3L 6.0L 6.2L 7.0L LS2 LS3 LS7 LQ4 LQ9 LC9 LY6 LM7 | Stock Replacement Cylinder Head Bolt Set |
This head bolt kit is perfect for anyone rebuilding or upgrading a GM LS engine from 2004 to 2013. It’s ideal for stock or performance builds, fitting 4.8L to 7.0L LS engines like LS2, LS3, LS7, and more. |
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Spectre Performance 46723 7/8″ Header Bolt |
This Spectre Performance Header Bolt is perfect for car enthusiasts and DIY mechanics. It’s great for upgrading or repairing engines in General Motors, Ford, or Chrysler vehicles. |
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ARP Pressure Plate Bolt Kit, Hex Head, Chromoly, Black Oxide, 12 in Clutch, GM LS-Series, Kit |
This ARP Pressure Plate Bolt Kit is perfect for car enthusiasts who want to upgrade their GM LS-Series engine. It’s ideal for those working on a 12-inch clutch and looking for reliable, high-quality parts. |
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Spectre Performance 4699 Harmonic Balancer Bolt |
The Spectre Performance 4699 Harmonic Balancer Bolt is perfect for car enthusiasts and DIY mechanics working on Chevrolet Small Block V8 engines. It’s easy to install and built to last, making it ideal for anyone upgrading or repairing their vehicle. |
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Spectre Performance 4698 Flywheel Bolt, Black oxide finish |
The Spectre Performance 4698 Flywheel Bolt is perfect for car enthusiasts and DIY mechanics who need reliable, high-quality parts. Its grade 8 black oxide finish and precise measurements make it ideal for secure and durable installations. |
Detailed Reviews
Discover the top 10 Performance Bolts in our expert-curated guide. Each product is thoroughly reviewed for durability, performance, and value. Whether you need strength, reliability, or affordability, this guide has you covered. Find the perfect bolts to upgrade your engine with confidence and ease.
1. Small Block V8 Performance Head Bolt Set | Heavy Duty 180,000 PSI Material | Complete Engine Bolts (1966-1997)

Upgrade your engine with the Small Block V8 Performance Head Bolt Set. Made from 180,000 PSI heavy-duty steel, these bolts offer exceptional durability and clamping force. The complete set includes 34 bolts for a perfect fit across your entire engine.
Fits 1966-1997 Small Block V8 engines, including 5.0L, 5.7L, and 6.6L models. EngineQuest’s 75+ years of expertise ensures top-quality design and U.S.-backed reliability.
| Pros | Cons |
|---|---|
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Perfect For:
This Small Block V8 Performance Head Bolt Set is perfect for car enthusiasts and mechanics who want reliable engine upgrades. It’s ideal for 1966-1997 Small Block V8 engines, offering durable, high-performance bolts for smooth rebuilds or upgrades.
Ready to Purchase?
2. ARP 134-3601 1343601 High Performance Series Cylinder Head Hex Bolts

ARP 134-3601 is a high-performance kit. It has cylinder head hex bolts. This kit is made for Small Block Chevy engines.
The part number is 1343601. It weighs 5.0 pounds. This kit is designed for specific vehicles.
ARP is a trusted brand. This kit ensures strong engine performance. It is easy to install.
| Pros | Cons |
|---|---|
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Perfect For:
This ARP 134-3601 kit is perfect for car lovers who want strong, reliable parts. It’s great for Small Block Chevy engines, giving you peace of mind during high-performance drives.
Ready to Purchase?
3. ARP 134-3609 Head Bolt Kit

The ARP 134-3609 Head Bolt Kit is a top-quality choice for your engine. It’s built to last and handle tough jobs.
This kit is strong, reliable, and easy to use. It works great for street, offroad, and Powersports. ARP delivers precision every time.
With ARP, you get proven performance. It’s the smart pick for any project. Upgrade with confidence today.
| Pros | Cons |
|---|---|
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Perfect For:
The ARP 134-3609 Head Bolt Kit is perfect for anyone who wants strong, reliable parts for their street, offroad, or Powersports vehicle. It’s ideal for those who trust ARP’s precision and quality.
Ready to Purchase?
4. ARP 134-6006 Rod Bolt Kit

The ARP 134-6006 Rod Bolt Kit is a reliable auto part. It comes in a compact package. This kit is made in the United States.
Its dimensions are 7.0″ L x 7.0″ W x 3.0″ H. The weight is 3.0 lbs. These details make it easy to handle.
This kit is a great choice for car repairs. It offers quality and durability. The ARP 134-6006 is a trusted product.
| Pros | Cons |
|---|---|
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Perfect For:
This ARP 134-6006 Rod Bolt Kit is perfect for car owners who want reliable auto parts. It’s made in the United States and easy to handle, weighing just 3.0 lbs.
Ready to Purchase?
5. Performance Tool W5331 240-Piece Metric Nuts and Bolts Assortment Kit

The Performance Tool W5331 is a 240-piece kit packed with metric nuts and bolts. It includes popular sizes of bolts, nuts, and washers. This kit is perfect for any shop.
The re-sealable plastic case keeps parts organized and handy. It’s easy to store and quick to access.
This Performance Tool kit is reliable and useful. It’s a must-have for DIY projects or repairs. Get it to keep your work smooth.
| Pros | Cons |
|---|---|
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Perfect For:
This kit is perfect for shops, repair work, and home fixes that need common nuts, bolts, and washers. The resealable case keeps all 240 pieces neat and ready to use.
Ready to Purchase?
6. Michigan Motorsports LS Head Bolt Kit | Fits 2004-2013 GM LS Engines | 4.8L 5.3L 6.0L 6.2L 7.0L LS2 LS3 LS7 LQ4 LQ9 LC9 LY6 LM7 | Stock Replacement Cylinder Head Bolt Set

The Michigan Motorsports LS Head Bolt Kit is a complete solution for your engine rebuild. It includes all the torque-to-yield bolts needed for both cylinder heads, ensuring a perfect fit.
This kit is an OEM-quality replacement, meeting or exceeding factory standards. It provides reliable performance for both stock and high-performance LS engines.
Fits 2004-2013 GM LS engines, including 4.8L to 7.0L variants. Easy installation, dependable clamping force, and wide compatibility make this kit a top choice.
| Pros | Cons |
|---|---|
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Perfect For:
This head bolt kit is perfect for anyone rebuilding or upgrading a GM LS engine from 2004 to 2013. It’s ideal for stock or performance builds, fitting 4.8L to 7.0L LS engines like LS2, LS3, LS7, and more.
Ready to Purchase?
7. Spectre Performance 46723 7/8″ Header Bolt

The Spectre Performance 46723 is a 7/8″ header bolt with a gold iridite finish. It’s strong, durable, and adds a sleek look to your engine. Each pack includes 12 bolts, perfect for your project.
These bolts are 3/8 In. -16 x 7/8 In., made to grade 5 standards. They feature a hex head with a built-in tool for easy installation. The gold iridite coating resists rust and corrosion.
They fit all General Motors, Ford, and most Chryslers, making them versatile. The grade 5 quality ensures strength and reliability. With 12 bolts per package, you’ll have plenty for your needs.
| Pros | Cons |
|---|---|
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Perfect For:
This Spectre Performance Header Bolt is perfect for car enthusiasts and DIY mechanics. It’s great for upgrading or repairing engines in General Motors, Ford, or Chrysler vehicles.
Ready to Purchase?
8. ARP Pressure Plate Bolt Kit, Hex Head, Chromoly, Black Oxide, 12 in Clutch, GM LS-Series, Kit

The ARP Pressure Plate Bolt Kit is a new and reliable upgrade for your GM LS-Series engine. It’s designed to handle 12-inch clutches with ease.
Made from chromoly steel and coated in black oxide, these bolts are strong and durable. They come in a compact package for easy storage.
Lightweight at just 0.36 pounds, this kit includes one set of bolts. Perfect for powersports vehicle upgrades.
| Pros | Cons |
|---|---|
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Perfect For:
This ARP Pressure Plate Bolt Kit is perfect for car enthusiasts who want to upgrade their GM LS-Series engine. It’s ideal for those working on a 12-inch clutch and looking for reliable, high-quality parts.
Ready to Purchase?
9. Spectre Performance 4699 Harmonic Balancer Bolt

Get a gold finish for your Chevy engine now. This bolt fits small block sizes well.
This part is a Grade 8 steel design. It comes with a security lock washer. It stays free from rust.
| Pros | Cons |
|---|---|
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Perfect For:
The Spectre Performance 4699 Harmonic Balancer Bolt is perfect for car enthusiasts and DIY mechanics working on Chevrolet Small Block V8 engines. It’s easy to install and built to last, making it ideal for anyone upgrading or repairing their vehicle.
Ready to Purchase?
10. Spectre Performance 4698 Flywheel Bolt, Black oxide finish

The Spectre Performance 4698 Flywheel Bolt is a high-quality and durable component. It features a black oxide finish for added strength.
This bolt is grade 8, ensuring maximum performance. It measures 7/16 inches and has a 1-inch length. The black oxide coating provides enhanced protection.
Made from premium materials, this bolt is built to last. It offers reliable performance and is easy to install. The Spectre Performance 4698 is a great choice for your needs.
| Pros | Cons |
|---|---|
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Perfect For:
The Spectre Performance 4698 Flywheel Bolt is perfect for car enthusiasts and DIY mechanics who need reliable, high-quality parts. Its grade 8 black oxide finish and precise measurements make it ideal for secure and durable installations.
Ready to Purchase?
Buying Guide
Upgrading your engine starts with the right bolts. Performance bolts keep your engine strong under pressure. Choose wisely for the best results.
Engaging Experience:
Finding the perfect bolts can feel overwhelming, but we’re here to help. Our guide breaks it down simply, so you can make a smart choice. Let’s find the best fit for your engine!
Factors to Consider When Buying Performance Bolts:
– Material: Look for heavy-duty steel or chromoly for strength. Grade 5 or 8 ensures durability under stress.
– Compatibility: Check if the bolts fit your engine model. OEM-quality replacements often work best for specific vehicles.
– Coating: Black oxide or gold iridite finishes resist rust and add protection.
– Brand: Trusted brands like ARP and Spectre Performance offer reliable, high-quality options.
– Kit Size: Ensure the kit includes all necessary bolts for your project. Complete sets save time and effort.
– Ease of Installation: Look for bolts with built-in tools or hex heads for simple installation.
– Performance Needs: Choose bolts designed for your use, whether street driving, racing, or offroad.
– Price: Balance quality with budget. Affordable kits like the Performance Tool W5331 offer great value.
With these tips, you’ll find the perfect performance bolts for your engine. Upgrade with confidence!