Cometic 4.540" Bore Head Gasket 0.027" Thickness Multi-Layered Steel BB Chevy Speedo Sending Unit Big performance in a small

Big performance in a small package

75 to 2 in Primary

000 psi tensile strength and Pro Series are rated at 190

Momentum XP

Baseplate screws and idle mixture screws

Cometic 4.540" Bore Head Gasket 0.027" Thickness Multi-Layered Steel BB Chevy Speedo Sending Unit Big performance in a smallComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 027". 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