Fel-Pro has expanded its range of MLS cylinder head gaskets for the GM LSX family of competition engines. Each of the new PermaTorque MLS head gaskets features Fel-Pro’s exclusive LaserWeld stopper layer technology currently in use in NASCAR, NHRA and IHRA competition.

Federal-Mogul (parent company) now offers 10 Fel-Pro PermaTorque MLS performance head gaskets for the LSX engine family. Gasket bore sizes include 4.100”, 4.200” and 4.270” offered in compressed thicknesses of 0.041” and 0.053” in dedicated right/left versions.  

Gasket Bore                 Thickness                     Volume                       

P/N 4.100”                      0.041”                           8.9cc                  

26472L-041 4.100”         0.041”                           8.9cc                 

26472R-041 4.100”        0.053”                           11.5cc               

26472L-053 4.100”         0.053”                           11.5cc               

26472R-053 4.200”        0.041”                            9.3cc                

26473L-041 4.200”         0.041”                            9.3cc                

26473R-041 4.200”        0.053”                            12.0cc              

26473L-053 4.200”         0.053”                            12.0cc              

26473R-053 4.270”        0.041”                             9.6cc                

26474-041 4.270”           0.053                             12.4cc              


Each gasket is composed of multiple layers of full-hard stainless steel, precisely engineered sealing beads and advanced polymer coatings to maintain contact pressure.