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 LS9 7-Layer MLS Head Gasket Pair is the go-to sealing solution for serious LS engine builds. With a 4.100” bore and multi-layer steel construction, these gaskets are engineered to maintain combustion pressure in even the most extreme conditions—whether you're running boost, nitrous, or high static compression. This set includes two (2) gaskets, ideal for full V8 top-end installations. Designed to replace GM part number 12622033, these gaskets provide a precise fit for 5.3L, 5.7L, 6.0L, and 6.2L LS engines, making them an excellent choice for LS1, LS6, LQ4, LQ9, L76, L92, L99, and more. Whether you're assembling a race-prepped LS track car, a high-powered street build, or refreshing a boosted daily, these 7-layer MLS gaskets deliver maximum strength, longevity, and heat resistance where it matters most—between the head and the block.

• High-Performance MLS Head Gasket Pair – Includes two (2) 7-layer multi-layer steel (MLS) LS9-style head gaskets designed for extreme pressure sealing in performance LS builds.
• 4.100” Bore for Oversized Pistons & Stroker Setups – Optimized for stroker kits, forged rotating assemblies, and high-horsepower builds requiring increased combustion chamber sealing.
• Designed for Boosted or High-Compression Engines – Built to handle the demands of turbocharged, supercharged, or nitrous LS engines, maintaining combustion seal under extreme cylinder pressure.
• Compatible with 5.3L, 5.7L, 6.0L, and 6.2L LS Platforms – Fits popular LS engines including LS1, LS6, LQ4, LQ9, L76, L77, L92, L94, L99, and more.
• Replaces GM 12622033 – Direct replacement for LS9-style gaskets used in factory supercharged applications, offering race-ready sealing performance with OEM fitment.