Cometic BMW B58M30C/B58B30M0/B58B30M1 83mm Bore .036in MLX Head Gasket

If you're rebuilding the top end of your BMW B58 engine, a reliable head gasket is crucial for sealing combustion pressure and coolant. This Cometic Multi-Layer Steel (MLS) head gasket is built specifically for these high-output engines, ensuring a strong seal between the cylinder head and the engine block. It's designed to handle the demands of modern engines without needing any additional sealants, making installation straightforward.

This gasket is constructed from multiple layers of stainless steel, which gives it increased strength and the ability to rebound, helping it resist corrosion and withstand the forces created when mating different metals like aluminum heads to cast iron blocks. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing environments and varying surface finishes. The specific thickness of this gasket is 0.036 inches when compressed, with an 83mm bore, designed to match the specifications of the B58M30C, B58B30M0, and B58B30M1 engine variants. This well-built gasket is a popular choice for many BMW models including the 340i, 440i, and 740i.