Cometic 4.200 MLS Head Gasket .040 - Pontiac 400-455 2010022 1991-1991 GMC R3500

1991-1991 GMC R3500

07 amps no check valve

5/8 harden shaft

which makes for a more consistent clamping force and one that compensates for head gasket compression when the cylinder heads are installed

1975-1979 Oldsmobile Cutlass Salon

Cometic 4.200 MLS Head Gasket .040 - Pontiac 400-455 2010022 1991-1991 GMC R3500Comprised 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