Cometic MLS head gasket for GM LS1 small-block engines, 4.035 in bore with .040 in thickness. This multi-layer steel gasket uses embossed outer layers with AMP coating and an uncoated stainless center shim to meet varied sealing environments and load conditions. The design reduces required clamp load to limit bore distortion and helps distribute sealing load across the combustion area.
Cometic GM LS1 SB 4.035in Bore .040in MLS Head Gasket