Cometic 94-03 Ford 7.3L Powerstroke VIN F 4.140 Bore / .067in MLX Cylinder Head GasketCOMETIC MLX (Multi Layer Stopper) gaskets utilize an integrated stopper layer for combustion chamber sealing and improved clamp load around the cylinder without increasing bore distortion. MLX technology can be found in some head gaskets and are made from the same materials as our MLS Head Gaskets. No sealants or re torque required. Improved clamp load around the cylinder without increasing bore distortion Made from High Quality Material This Part