Cometic Chevy Mark-IV-GM Gen-V/VI Big Block V8 .030in MLS Exhaust Mani Gskt Set-2.130in Round Ports

These Cometic Multi-Layer Steel (MLS) exhaust manifold gaskets are built with a .030 inch thickness, designed to handle the high cylinder pressures found in Chevrolet Mark IV and GM Gen V/VI Big Block V8 engines. The MLS construction means they are well-built to maintain their torque set and resist corrosion, ensuring they won't burn through or push out under demanding conditions. They are specifically made for round ports measuring 2.130 inches, which is a common size for these powerful V8s.

Because they are made from multiple layers of steel, these gaskets create a solid seal without the need for any additional sealants, simplifying the installation process. This makes them a reliable choice whether you're working with different combinations of cylinder head and exhaust manifold materials, which is common when rebuilding or modifying these classic big block engines. They fit a wide range of vehicles, including models like the Chevrolet Impala, Chevelle, and C10 Pickup from the mid-60s through the mid-90s.