Cometic Toyota B58/B58H .040in 83mm Bore MLX Head Gasket

This is the Cometic MLX head gasket, specifically made for the Toyota B58 and B58H engines. It's designed with an 83mm bore and is .040 inches thick, which is a common size for rebuilds or performance applications where a slightly thicker gasket might be needed to achieve the desired compression ratio. This gasket is built to provide a strong seal between your cylinder head and engine block, which is critical for keeping combustion pressures contained and preventing coolant or oil from mixing into the cylinders.

Cometic uses their MLX material for this gasket, which is a multi-layer steel construction. This means it's well-built to handle the high pressures and temperatures found in modern performance engines. The multi-layer design allows it to conform better to the surfaces of the head and block, creating a more reliable seal, especially when dealing with any minor imperfections. It's a solid option for anyone rebuilding or working on the top end of their engine, ensuring reliable performance and preventing leaks.

This gasket fits a range of vehicles, including the Toyota GR Supra from 2020-2024, as well as various BMW models like the 540i, 740i, M340i, and Z4. Always double-check the fitment guide to confirm it matches your specific vehicle.