Cometic Cylinder Head Gasket - 4.375 in Bore - 0.040 in Compression Thickness - Multi-Layer - Big Block Chevy C5329-040 Quick Fuel Technology 50 Male Thread to 1/2-20

50 Male Thread to 1/2-20 in Male Thread

3-1/8" flat height

The included Energy Suspension polyurethane bushings are an excellent improvement over OEM rubber bushings

Couplings constructed out of heavy-duty high-temp 5-PLY polyester for heat-resistance and durability

Cometic Cylinder Head Gasket - 4.375 in Bore - 0.040 in Compression Thickness - Multi-Layer - Big Block Chevy C5329-040 Quick Fuel Technology 50 Male Thread to 1/2-20Comprised 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