Cometic Cylinder Head Gasket - 4.630 in Bore - 0.040 in Compression Thickness - Multi-Layer - Big Block Chevy C5334-040 21411310 Cooler assembly includes fan mounted

Cooler assembly includes fan mounted coolerDerale has been the leader in performance cooling for decades

1967-1986 Pontiac Bonneville

1-1/4 in Diameter Tube

CNC machined to reduce weight

Cometic Cylinder Head Gasket - 4.630 in Bore - 0.040 in Compression Thickness - Multi-Layer - Big Block Chevy C5334-040 21411310 Cooler assembly includes fan mountedComprised 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