The Cometic MLS cylinder head gasket for Ford Y-Block V8 is specified at .023-inch thickness for a 3.860-inch bore and uses multiple embossed stainless steel layers. Outer layers are coated with Viton rubber on both sides and the gasket may include three to five stainless layers with AMP coating on embossed faces. This construction provides a multi-layer steel gasket designed to conform across varied sealing surfaces while resisting corrosion and heat up to 250°C per the Viton coating specification.
Cometic Ford Y-Block V8 3.860in Bore .023in MLS Cylinder Head Gasket