MAHLE 54442 Multi-Layer Steel Cylinder Head Gasket 3.950" Bore GM LS

The MAHLE Original 54442 is a multi-layer steel (MLS) cylinder head gasket with a 3.950-inch bore and 0.050-inch compressed thickness, designed for GM LS engine applications including 4.8L, 5.3L, and 5.7L LS1 engines. This premium head gasket delivers OEM-quality sealing performance with advanced materials engineered to withstand the extreme pressures and temperatures found between the cylinder head and engine block.

Key Features:

• Multi-layer steel construction for superior strength and durability
• FKM elastomer coating for outstanding sealing on head and block mating surfaces (up to 60RA)
• 3.950-inch (100.33mm) bore diameter for proper cylinder sealing
• 0.050-inch compressed thickness for accurate compression ratio
• Meets or exceeds original equipment specifications
• Sold individually - two required per engine

Applications:

• 4.8L engines with VIN code C
• 5.3L engines with VIN codes 0, 3, B, J, M
• 5.7L LS1 engines

MAHLE is a world-leading OEM supplier with decades of gasket engineering expertise. This head gasket helps increase torque and performance while decreasing oil consumption and emissions. The advanced multi-layer steel design provides exceptional conformability to sealing surfaces and maintains clamping force under extreme thermal cycling. MAHLE gaskets utilize OE equivalent or better materials, ensuring reliable, leak-free performance for both factory replacement and performance applications.

Note: May require new head bolts based on application. Always follow manufacturer torque specifications and installation procedures for proper installation.