Cometic Cylinder Head Gasket - 4.630 in Bore - 0.040 in Compression Thickness - Multi-Layer - Big Block Chevy C5334-040 21411310 1967-1986 Pontiac Bonneville

1967-1986 Pontiac Bonneville

Takes the guess work out of shock travel and axle housing movement

4 x 4 in Legs

1-1/4 in Diameter Tube

1983-1991 Chevrolet G30

Cometic Cylinder Head Gasket - 4.630 in Bore - 0.040 in Compression Thickness - Multi-Layer - Big Block Chevy C5334-040 21411310 1967-1986 Pontiac BonnevilleComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 040". 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