Atomic - Barra Head Gasket

One of the most maligned components of a turbocharged engine is the head gasket, so we spent a lot of time and effort to R&D a range of different gaskets for DOHC and SOHC Ford 6 cyl engines. A brief overview of the differing construction styles and corresponding applications are as follows:

• SLS – Single Layer Shim. This is an OE style gasket for use in moderate performance applications. Despite its name, this gasket is actually made of two layers – it features laser welded bands around the combustion chambers, therefore adding a second layer to the main body of the gasket which is constructed from a single layer of shim steel gasket material. It is viton coated and is .015” (.38mm) thick.

• MLS – Multi Layer Shim. This gasket, as the name implies is made up of 2 complete layers of shim gasket stock, riveted together to form a single gasket. Also being .015” (.38mm) thick, the MLS is used in the same applications as the SLS and performs to similar to slightly better performance levels.

• MLS-D – Multi Layer Shim - Diesel Type. This gasket, It has a "Diesel Style" sealing ring around the combustion chamber to promote further gasket integrity and is made up of 2 complete layers of shim gasket stock, riveted together to form a single gasket. Also being .039” (1.00mm) thick, the MLS-D is used in high boost up to 40psi applications. Accepts M12 & M14 head studs.