Cometic 4.320 MLS Head Gasket .040 - BB Chevy H88601CM3M and a gold zinc chromate

and a gold zinc chromate finish

LED Light Indicates Locked or Unlocked

Camshaft Bearing

5/16 in Bolt

Optical Trigger

Cometic 4.320 MLS Head Gasket .040 - BB Chevy H88601CM3M and a gold zinc chromateComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 040". Cometic MLS (Multi Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two