Cometic Cylinder Head Gasket - 4.500 in Bore - 0.051 in Compression Thickness - Big Block Ford Fire Suppression System Tubing 1971-1988 Pontiac Bonneville

1971-1988 Pontiac Bonneville

4L80E / 4L85E

25 horizontal bolt spacing

32 in Diameter

Cometic Cylinder Head Gasket - 4.500 in Bore - 0.051 in Compression Thickness - Big Block Ford Fire Suppression System Tubing 1971-1988 Pontiac BonnevilleComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 051". 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