MLS Head Gasket 4.165 Valve Pocketed Bore for GM Gen I Small Block V8.
Comprised of multiple layers of embossed stainless steel, the outer layers utilize a Viton rubber coating.
The operating thickness when compressed is .036.
Steam holes are included.
Each COMETIC MLS (Multi-Layer Steel) Head Gasket provides maximum sealing performance for high output engines and requires no sealants.
MLS gaskets are suitable for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks.
They withstand the shearing force created by the two materials.
Increased strength is achieved due to multiple layers of stainless steel, which also allows for rebound and corrosion resistance.
The outer layers are embossed and coated on both sides with Viton, a fluoroelastomer rubber material heat resistant to 250 C/482 F.
Viton meets the demands of various harsh sealing environments, load conditions, and surface finishes.
The shim layer is uncoated stainless steel, which can be varied for multiple thickness requirements.
