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The Cometic Dart MLX head gasket for Hemi Gen3 Iron Eagle blocks with a 4.000 in bore (RHS) incorporates an integrated "stopper" layer for combustion chamber sealing. MLX construction improves clamp load around the cylinder without increasing bore distortion, delivering the sealing performance called out for the listed bore and right-side orientation.
Cometic Dart Hemi Gen3 Iron Eagle Block .040in MLX Cylinder Head Gasket 4.000in Bore - RHS
