Cometic 4.060" Bore Head Gasket 0.060" Thickness Multi-Layered Steel GM LS-Series HB22031 3 in OD Axle Tube

3 in OD Axle Tube

Backing Washers are not needed on SA2015 helmets

When clamping to 1-3/4" tubing

Oil / Trans / Water

Cometic 4.060" Bore Head Gasket 0.060" Thickness Multi-Layered Steel GM LS-Series HB22031 3 in OD Axle TubeComprised 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