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The Cometic Dart MLX head gasket for Hemi Gen3 Iron Eagle blocks with a 4.000 in bore (LHS) uses an integrated "stopper" layer to seal the combustion chamber. The MLX construction improves clamp load around the cylinder without increasing bore distortion, making it suitable for installations specifying the 4.000 in bore and left-side gasket.
Cometic Dart Hemi Gen3 Iron Eagle Block .054in MLX Cylinder Head Gasket 4.000in Bore - LHS
