SOUTHFIELD, Mich. — Federal-Mogul has introduced a line of Fel-Pro PermaTorque MLS performance head gaskets engineered to address potential cylinder-head lift issues encountered on some supercharged, turbocharged and nitrous-equipped small-block Ford engines.
According to the company, the new Fel-Pro PermaTorque MLS “Severe Duty” head gaskets combine Federal-Mogul’s industry leading multi-layer-steel technology with additional design features that accommodate extreme head lift. The gaskets are available in two design configurations: “SD4,” featuring four layers of embossed full-hard stainless steel and no shim layer, resulting in additional “spring” action; and “SD5,” which comprises four embossed stainless steel layers and one shim layer, providing the same “spring” action and additional (up to .0052-inch) thickness.
Federal-Mogul sealing system engineers utilized Linear Variable Displacement Transducers to determine the location and amount of head lift encountered in a variety of small-block Ford engines. This insight into real-world operating conditions enabled them to create a PermaTorque MLS head gasket design that exceeds the sealing requirements of supercharged and turbocharged engines, the company says.
Each active layer within a PermaTorque MLS Severe Duty gasket features precisely engineered sealing beads to maintain contact pressure between the cylinder head and block. According to Federal-Mogul, these head gaskets also feature an advanced rubber coating that accommodates a wide range of surface finishes and ensures superior reliability in all applications.
For more information regarding Fel-Pro PermaTorque MLS Severe Duty performance head gaskets, visit www.felpro-only.com. Complete applications listings for Fel-Pro gaskets and other Federal-Mogul products are available through the company’s free online www.FMe-cat.com electronic catalog.
