Fel-Pro PermaTorque gaskets for LSX engines

Each of the new PermaTorque MLS head gaskets features the Fel-Pro brand’s exclusive LaserWeld stopper layer technology used in NASCAR, NHRA and IHRA competition.

Federal-Mogul now offers 10 Fel-Pro PermaTorque MLS performance head gaskets for the LSX family of engines. Gasket bore sizes are 4.100 inch and 4.200 inch, with available compressed thicknesses of .041 inch and .053 inch.

Each gasket is composed of multiple layers of full-hard stainless steel, precisely engineered sealing beads and advanced polymer coatings. These elements maintain contact pressure between the cylinder head and block despite the extreme horizontal and vertical casting motion encountered in many high-performance engine applications.

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