Cometic 4.190" MLS Head Gasket (Each) - SB SB Chevy2 350/400 - .040" Thickness 2010172 Rear spring rates - 160

Rear spring rates - 160 lbs

The professional HANS post clips have aluminum bases and are sold as a pair for one helmet

Hook and Loop Attachment

10-micron fabric element

Cometic 4.190" MLS Head Gasket (Each) - SB SB Chevy2 350/400 - .040" Thickness 2010172 Rear spring rates - 160Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 040". With Steam Holes. 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