Looking for the best MLS multi-layer steel gaskets to upgrade your engine’s performance? We’ve got you covered with a guide to the top 10 MLS gaskets, offering easy installation, perfect fits, and long-lasting performance for a leak-free and reliable engine.
MLS Multi-Layer Steel Gaskets are a game-changer for engine performance. They offer superior sealing and durability, making them perfect for high-performance builds. Whether you’re upgrading or maintaining, these gaskets ensure reliable results.
From LS engines to Chevy SBC 350s, there’s an MLS gasket for every need. They handle high heat, pressure, and boost, keeping your engine leak-free. Brands like Michigan Motorsports and BTR deliver top-notch quality for DIY enthusiasts and pros alike.
Ready to upgrade your ride? Dive into our guide to find the best MLS gaskets for your engine. Discover easy installation, perfect fits, and long-lasting performance that will keep you on the road with confidence.
List of Top 10 MLS Multi Layer Steel Gaskets
| Image | Title | Best For | Price |
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Michigan Motorsports LS Multi-Layer Steel (MLS) Header Manifold Exhaust Gasket | Direct Replacement for GM 12617944 | High-Performance Seal for LS1 LS2 LS3 LS6 LQ4 LQ9 4.8 5.3 5.7 6.0 6.2 Engines |
This exhaust gasket is perfect for car enthusiasts and DIY mechanics. It’s ideal for LS engine projects, performance upgrades, or routine maintenance. |
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Michigan Motorsports LS1 LS6 Cylinder Head Gaskets | MLS Multi-Layer Steel | Fits 4.8L 5.3L 5.7L LS Engines | Replaces GM 12589226 |
This product is perfect for car enthusiasts and mechanics who need reliable, high-performance cylinder head gaskets for their LS engines. It’s ideal for stock or upgraded engines and fits 4.8L, 5.3L, and 5.7L LS models seamlessly. |
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WELLBOX 2PCS MLS Cylinder Head Gasket Set for GM LS1/LS6 Gen III Engines 4.8L/5.3L/5.7L, Multi-Layer Steel Design Replaces OE 12589226 |
This WELLBOX MLS Cylinder Head Gasket Set is perfect for car enthusiasts and mechanics working on GM LS engines. It’s ideal for high-performance upgrades like boost, nitrous, or high compression. |
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Michigan Motorsports LS9 7-Layer MLS Head Gasket Pair | 4.100″ Bore | Fits 5.3L 5.7L 6.0L 6.2L LS Engines | Multi-Layer Steel for Boosted & High-Compression Builds | Replaces GM #12622033 | Set of 2 |
This product is perfect for car enthusiasts who want to boost their LS engine’s performance. It’s ideal for high-horsepower builds, turbocharged setups, or supercharged engines. |
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Michigan Motorsports LS2 6.0L MLS Head Gaskets – 4.020″ Bore – Multi-Layer Steel – Fits LS2 LQ4 LQ9 L76 L77 LY6 L96 LFA LZ1 – Replaces GM 12589227 – Pair |
These head gaskets are perfect for anyone rebuilding or upgrading a 6.0L LS engine. Whether you’re working on a street car, a performance build, or just need a reliable replacement, these gaskets are a great fit. |
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BTR Brian Tooley Racing MLS LS9 Head Gasket Pair – 4.100″ Bore – Replaces GM Part #12622033 – Multi-Layer Steel for Turbo, Supercharged & Performance LS Builds |
This head gasket pair is perfect for performance enthusiasts building turbocharged, supercharged, or high-performance LS engines. It’s ideal for large bore builds and handles extreme pressure with ease. |
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2PCS Exhaust Manifold Gasket Set 12617944 12600530 LS MLS Multi-Layer Steel Header Fits for LS1 LS3 LSX Series Engines |
This exhaust manifold gasket set is perfect for car enthusiasts and mechanics who need a reliable replacement for their LS series engines. It’s ideal for those seeking a durable, leak-free solution to keep their vehicle running smoothly. |
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KZDAZ Multi-Layer Steel (MLS) Header Manifold Exhaust Gasket with Bolts Kit, Compatible with Chevy Silverado Suburban GMC Sierra Yukon CTS Escalade LS LQ LM7 4.8L 5.3L 5.7L 6.0L 6.2L Engines 12617944 |
This MLS Header Manifold Exhaust Gasket with Bolts Kit is perfect for anyone with a compatible Chevy or GMC vehicle who wants to improve engine performance and prevent exhaust leaks. It’s easy to install and works great for LS engines. |
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Speedmaster PCE348.1003 Compatible with Chevy SBC 350 MLS Multi Layer Steel Head Gasket (4.065″ @ 0.040″) – Single |
This Speedmaster PCE348.1003 head gasket is perfect for Chevy SBC 350 owners who want reliable performance. It’s ideal for road, race, or recreation, offering durability and precision with a 12-month warranty. |
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BTR Brian Tooley Racing LS1/LS6 MLS Cylinder Head Gasket Pair – Fits 4.8L 5.3L 5.7L Gen 3 LS Engines – Multi-Layer Steel Design – Replaces GM Part #12589226 |
This BTR cylinder head gasket pair is perfect for LS engine builders and enthusiasts who want reliable, high-performance sealing. Whether you’re working on a naturally aspirated, turbocharged, or supercharged 4.8L, 5.3L, or 5.7L Gen 3 LS engine, these gaskets are built to handle the heat and pressure. |
Detailed Reviews
Discover the top 10 MLS Multi-Layer Steel Gaskets in our expert-curated guide. Each product is thoroughly reviewed for performance, durability, and value. Whether you’re upgrading your engine or tackling a DIY project, this guide ensures you find the perfect fit. Read on to make an informed choice and boost your engine’s reliability and power.
1. Michigan Motorsports LS Multi-Layer Steel (MLS) Header Manifold Exhaust Gasket | Direct Replacement for GM 12617944 | High-Performance Seal for LS1 LS2 LS3 LS6 LQ4 LQ9 4.8 5.3 5.7 6.0 6.2 Engines

The Michigan Motorsports LS MLS Header Gasket is a direct replacement for GM 12617944. It’s perfect for LS engines, fitting models like LS1, LS2, and LS3. This gasket ensures a high-performance seal for your exhaust system.
Its multi-layer steel (MLS) construction offers maximum durability and superior sealing. It prevents exhaust leaks in high-temperature and high-performance applications. The gasket is precision-engineered to match OEM specifications.
This gasket is essential for LS swaps, performance builds, and engine maintenance. It’s easy to install, requiring no special tools. Perfect for DIY enthusiasts and professionals alike.
| Pros | Cons |
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Perfect For:
This exhaust gasket is perfect for car enthusiasts and DIY mechanics. It’s ideal for LS engine projects, performance upgrades, or routine maintenance.
Ready to Purchase?
2. Michigan Motorsports LS1 LS6 Cylinder Head Gaskets | MLS Multi-Layer Steel | Fits 4.8L 5.3L 5.7L LS Engines | Replaces GM 12589226

Michigan Motorsports LS1 LS6 Cylinder Head Gaskets are built with multi-layer steel (MLS) for excellent durability. These gaskets provide a strong, reliable seal for your LS engine.
They fit 4.8L, 5.3L, and 5.7L LS engines. The cylinder bore diameter is 3.940 in. These gaskets replace GM part number 12589226.
Built for both stock and performance engines, these gaskets ensure a tight seal under high compression. They resist heat and corrosion, preventing leaks. Installation is easy, with no modifications needed.
| Pros | Cons |
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Perfect For:
This product is perfect for car enthusiasts and mechanics who need reliable, high-performance cylinder head gaskets for their LS engines. It’s ideal for stock or upgraded engines and fits 4.8L, 5.3L, and 5.7L LS models seamlessly.
Ready to Purchase?
3. WELLBOX 2PCS MLS Cylinder Head Gasket Set for GM LS1/LS6 Gen III Engines 4.8L/5.3L/5.7L, Multi-Layer Steel Design Replaces OE 12589226

The WELLBOX MLS Cylinder Head Gasket Set is built for GM LS1 and LS6 engines. It fits 4.8L, 5.3L, and 5.7L engines.
This set has 2 high-quality MLS head gaskets. They seal tightly under high heat and pressure. They work well with boost or nitrous systems.
The multi-layer steel design gives strong and reliable sealing. Installation is simple and precise. It comes with 2 years of satisfaction guarantee.
| Pros | Cons |
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Perfect For:
This WELLBOX MLS Cylinder Head Gasket Set is perfect for car enthusiasts and mechanics working on GM LS engines. It’s ideal for high-performance upgrades like boost, nitrous, or high compression.
Ready to Purchase?
4. Michigan Motorsports LS9 7-Layer MLS Head Gasket Pair | 4.100″ Bore | Fits 5.3L 5.7L 6.0L 6.2L LS Engines | Multi-Layer Steel for Boosted & High-Compression Builds | Replaces GM #12622033 | Set of 2

Unleash the power of your LS engine with this high-performance head gasket set. These 7-layer MLS gaskets are built tough for extreme pressure, ensuring a perfect seal for your boosted or high-compression builds.
Get ready for serious gains. They fit popular LS engines. Upgrade your ride today!
| Pros | Cons |
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Perfect For:
This product is perfect for car enthusiasts who want to boost their LS engine’s performance. It’s ideal for high-horsepower builds, turbocharged setups, or supercharged engines.
Ready to Purchase?
5. Michigan Motorsports LS2 6.0L MLS Head Gaskets – 4.020″ Bore – Multi-Layer Steel – Fits LS2 LQ4 LQ9 L76 L77 LY6 L96 LFA LZ1 – Replaces GM 12589227 – Pair

Unleash the power of your LS engine with these high-performance Michigan Motorsports head gaskets. They provide precision sealing for street, performance, or rebuild needs. Get ready for reliable performance every time.
Built with multi-layer steel, these gaskets offer superior strength and longevity. A high-performance coating ensures maximum sealing even under tough conditions. They are designed to handle high pressure and heat with ease.
These gaskets fit a 4.020” bore and are a direct replacement for GM part number 12589227. They are perfect for your 6.0L LS2 and many other LS-based engines.
| Pros | Cons |
|---|---|
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Perfect For:
These head gaskets are perfect for anyone rebuilding or upgrading a 6.0L LS engine. Whether you’re working on a street car, a performance build, or just need a reliable replacement, these gaskets are a great fit.
Ready to Purchase?
6. BTR Brian Tooley Racing MLS LS9 Head Gasket Pair – 4.100″ Bore – Replaces GM Part #12622033 – Multi-Layer Steel for Turbo, Supercharged & Performance LS Builds

The BTR Brian Tooley Racing MLS LS9 Head Gasket Pair is made for high-performance LS engines. It includes two multi-layer steel gaskets. These gaskets handle high cylinder pressures in turbo, supercharged, and nitrous engines.
The gaskets have a 4.100” bore size, perfect for strokers and large builds. They give precise sealing and keep the combustion chamber intact. They are strong and reliable under pressure.
They replace GM 12622033 and fit factory LS9-style gaskets. The MLS steel design is durable and heat resistant.
| Pros | Cons |
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Perfect For:
This head gasket pair is perfect for performance enthusiasts building turbocharged, supercharged, or high-performance LS engines. It’s ideal for large bore builds and handles extreme pressure with ease.
Ready to Purchase?
7. 2PCS Exhaust Manifold Gasket Set 12617944 12600530 LS MLS Multi-Layer Steel Header Fits for LS1 LS3 LSX Series Engines

Upgrade your engine with this premium 2-piece Exhaust Manifold Gasket Set. Designed for LS series engines, it’s built to last and perform.
These gaskets offer a superior seal. They are made from strong multi-layer steel. Enjoy reliable performance mile after mile.
With part number 12617944, this set ensures a perfect fit and exceptional durability. Get back on the road with confidence!
| Pros | Cons |
|---|---|
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Perfect For:
This exhaust manifold gasket set is perfect for car enthusiasts and mechanics who need a reliable replacement for their LS series engines. It’s ideal for those seeking a durable, leak-free solution to keep their vehicle running smoothly.
Ready to Purchase?
8. KZDAZ Multi-Layer Steel (MLS) Header Manifold Exhaust Gasket with Bolts Kit, Compatible with Chevy Silverado Suburban GMC Sierra Yukon CTS Escalade LS LQ LM7 4.8L 5.3L 5.7L 6.0L 6.2L Engines 12617944

This MLS exhaust manifold gasket kit is designed for Chevy and GMC vehicles. It fits LS engines such as LS1, LS2, LS3, and more.
The gasket is made from multi-layer steel, offering high temperature resistance and a strong seal. It helps prevent exhaust leakage, reduces engine pressure, and boosts fuel efficiency.
The kit includes 2 gaskets and 12 bolts. Installation is easy and requires no modifications. Customer support is available for any questions.
| Pros | Cons |
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Perfect For:
This MLS Header Manifold Exhaust Gasket with Bolts Kit is perfect for anyone with a compatible Chevy or GMC vehicle who wants to improve engine performance and prevent exhaust leaks. It’s easy to install and works great for LS engines.
Ready to Purchase?
9. Speedmaster PCE348.1003 Compatible with Chevy SBC 350 MLS Multi Layer Steel Head Gasket (4.065″ @ 0.040″) – Single

The Speedmaster PCE348.1003 is a high-quality head gasket designed for Chevy SBC 350 engines. It features multi-layer steel construction for durability and performance. This gasket is compatible with 4.065″ bore size at 0.040″ thickness.
Speedmaster ensures track-proven reliability for road, race, and recreation. It comes with a 12-month limited worldwide warranty for peace of mind.
| Pros | Cons |
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Perfect For:
This Speedmaster PCE348.1003 head gasket is perfect for Chevy SBC 350 owners who want reliable performance. It’s ideal for road, race, or recreation, offering durability and precision with a 12-month warranty.
Ready to Purchase?
10. BTR Brian Tooley Racing LS1/LS6 MLS Cylinder Head Gasket Pair – Fits 4.8L 5.3L 5.7L Gen 3 LS Engines – Multi-Layer Steel Design – Replaces GM Part #12589226

The BTR Brian Tooley Racing LS1/LS6 MLS Cylinder Head Gasket Pair is built for strong and reliable sealing. It fits 4.8L, 5.3L, and 5.7L Gen 3 LS engines. These gaskets are made for high heat and high compression.
They replace GM Part #12589226. They are easy to install and fit perfectly.
Each gasket uses multi-layer steel (MLS) construction. This makes them resistant to head lift and high pressure. They are great for boosted or high-compression engines.
| Pros | Cons |
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Perfect For:
This BTR cylinder head gasket pair is perfect for LS engine builders and enthusiasts who want reliable, high-performance sealing. Whether you’re working on a naturally aspirated, turbocharged, or supercharged 4.8L, 5.3L, or 5.7L Gen 3 LS engine, these gaskets are built to handle the heat and pressure.
Ready to Purchase?
Buying Guide
MLS Multi-Layer Steel Gaskets are a must-have for anyone looking to boost engine performance. They offer superior sealing and durability, making them perfect for high-performance builds. Whether you’re upgrading or maintaining, these gaskets ensure reliable results.
Choosing the right MLS gasket can feel overwhelming, but we’re here to help. Below are the key factors to consider when buying the best MLS gaskets for your engine.
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Engine Compatibility:
Make sure the gasket fits your engine model. Check for bore size, engine type, and OEM part numbers to ensure a perfect match. -
Material Quality:
Look for multi-layer steel (MLS) construction. This ensures durability, heat resistance, and a tight seal under high pressure. -
Performance Needs:
Consider your engine’s performance level. If you’re running a boosted or high-compression build, choose gaskets designed for extreme conditions. -
Brand Reputation:
Stick with trusted brands like Michigan Motorsports and BTR. They offer top-notch quality and reliable performance. -
Ease of Installation:
Opt for gaskets that are easy to install. Many MLS gaskets require no special tools, making them ideal for DIY enthusiasts. -
Price and Warranty:
Compare prices and look for warranties. Some brands offer satisfaction guarantees, giving you peace of mind.
With these factors in mind, you’ll find the perfect MLS gasket to keep your engine running smoothly and powerfully.