Cometic’s MLS head gasket for GM LSX engines is specified for a 4.085" bore and .051" thickness for the right-side bank. Constructed from multiple embossed layers combining AMP coating and uncoated stainless steel, the gasket’s embossed outer layers and variable shim center improve sealing across diverse surface finishes and load conditions. It requires less clamp load and helps distribute sealing loads to reduce bore distortion.
Cometic GM LSX 4.085in Bore .051in MLS Head Gasket - Right