Cometic Saab B204/B234 .045in MLS Cylinder Head Gasket - 91mm Bore

Starting with multiple embossed layers of stainless steel, this Cometic Multi-Layer Steel (MLS) head gasket is built for the demands of high-output engines. The outer layers are coated on both sides with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F (250°C) and works well in harsh sealing environments.

The center layer is uncoated stainless steel, and its thickness can be varied to meet different requirements; in this case, it's set to provide a compressed operating thickness of 0.036 inches with a 0.045-inch bore. This construction gives the gasket increased strength and the ability to rebound, resisting corrosion and handling the shearing forces between different block and head materials, making it suitable for both aluminum-to-aluminum and aluminum-to-cast iron setups. Because it's an MLS gasket, it requires no additional sealants.