Cometic 4.060" Bore Head Gasket 0.060" Thickness Multi-Layered Steel GM LS-Series HB22031 ACCEL Engineers developed and patented

ACCEL Engineers developed and patented the U-Groove technology which permitted the spark to develop a much larger

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Cometic 4.060" Bore Head Gasket 0.060" Thickness Multi-Layered Steel GM LS-Series HB22031 ACCEL Engineers developed and patentedComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 060". 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