Cometic Gasket BMW S14B20/S14B23 .040in MLS Cylinder Head Gasket - 94.5mm Bore

Cometic Gasket is known for making well-built sealing components for performance engines. This Multi-Layer Steel (MLS) head gasket is built for your 1988-1999 BMW M3, specifically for the S14B20 and S14B23 engines. It's designed to handle the demands of high-output engines, ensuring a solid seal between your cylinder head and engine block without needing extra sealants.

This gasket uses multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F (250°C) and works well with different surface finishes. The center layer is stainless steel and can be varied in thickness; in this case, it's set to provide a compressed operating thickness of 0.036 inches with a 0.040-inch bore, measuring 94.5mm. This construction helps manage the shearing forces that can occur between aluminum heads and cast iron blocks, making it suitable for various material combinations.