Cometic GM Gen I Small Block V8 MLS Head Gasket - 4.200 Round Bore Helmet Fresh Air Systems 309 Grade stainless steel line

309 Grade stainless steel line has been double annealed for easier bending and flaring

3 Keyway Crank Sprocket for even more Adjustment Capability

But over the years Crower has developed a more diverse line of products

Soft and comfortable

Cometic GM Gen I Small Block V8 MLS Head Gasket - 4.200 Round Bore Helmet Fresh Air Systems 309 Grade stainless steel lineComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 120". 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