Cometic C4478-120 BMW MLS Cylinder Head Gasket - S38B35/S38B36

The Cometic C4478-120 is a Multi-Layer Steel (MLS) cylinder head gasket specifically engineered for BMW S38B35 and S38B36 inline-6 engines. Found in iconic models like the E34 M5 and E24 M6, these high-performance powerplants demand precision sealing solutions that can withstand extreme cylinder pressures and temperatures.

Key Features:

• Multi-Layer Steel construction provides superior sealing and durability compared to conventional gaskets
• Engineered specifically for BMW S38B35 (3.5L) and S38B36 (3.6L) inline-6 engines
• 0.120-inch (3.0mm) compressed thickness for precise compression ratio tuning
• Embossed stainless steel layers with elastomeric coating ensure optimal sealing under high cylinder pressures
• Accommodates minor surface imperfections and thermal expansion cycles
• Ideal for high-performance street, track, and forced induction applications

Cometic gaskets are manufactured in the USA using advanced materials and precision manufacturing processes. The MLS design allows the gasket to adapt to engine movement and thermal cycling while maintaining consistent clamping pressure across the entire sealing surface. This head gasket is essential for engine rebuilds, performance upgrades, or racing applications where reliability and sealing integrity are critical.