Product Description
Michigan Motorsports LS3 MLS Cylinder Head Gasket Set w/ Head Bolts
5-Layer MLS Upgrade | Complete Head Gasket Kit | 6.0L & 6.2L LS Engines
Upgrade your LS engine sealing performance with the Michigan Motorsports LS3 Multi-Layer Steel (MLS) Cylinder Head Gasket Kit. Designed for durability and reliability under higher cylinder pressures, these 5-layer MLS gaskets provide superior sealing compared to factory 3-layer designs. Manufactured by the same source as OEM GM head gaskets, this kit delivers OE-level quality while offering a performance-focused upgrade for both stock and modified LS builds. Complete with new head bolts, this kit gives you everything needed for a proper cylinder head installation.
Key Features & Benefits
- 5-Layer MLS Construction – Advanced multi-layer steel design provides superior sealing strength and resistance to combustion pressure, making it ideal for performance and boosted applications.
- OEM-Level Manufacturing – Produced by the same supplier as GM OE gaskets (comparable to GM #12610046), ensuring precise fitment, durability, and long-term reliability.
- Performance Upgrade Over Factory Gaskets – Ideal replacement for engines originally equipped with weaker 3-layer gaskets, improving sealing integrity in high compression or cammed builds.
- Complete Installation Kit – Includes both cylinder head gaskets and a full set of stock replacement head bolts for both cylinder heads, simplifying your rebuild or upgrade.
- Optimized LS3 Specifications – Features a 4.100" bore and .051" compressed thickness for proper sealing and compatibility across a wide range of LS applications.
What’s Included
- (2) MLS Cylinder Head Gaskets
- Complete Set of Head Bolts (Both Cylinder Heads)
Fitment
- Fits 2005–2013 LS-Based 6.0L & 6.2L Engines: LS3, L99, L76, L92, L96, LY6, LS2, LQ4, LQ9, L9H, L94, L77
- Compatible with Car, Truck, and SUV Applications
- For 2005+ LS Cylinder Heads: Designed for applications where all 10 long head bolts per head are equal length
Important Installation Note
- It is highly recommended to clean the head bolt threads in the engine block using a thread chaser (such as ARP 912-0011) before installation. Factory thread compounds can cause inaccurate torque readings and may lead to bolt stretching or failure if not properly cleaned.
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Product Reviews
4 Reviews Hide Reviews Show Reviews
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Good quality
Good quality
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Fit perfect
Worked as expected
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Worked just as expected!
Michigan Motorsports is quickly becoming my go to for parts. Great service, value and quick shipping. This set was recommended by Michigan Motorsports and installed with no issues.
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Head gaskets
Best gaskets I ever used
