Cometic Chevy Mark-IV Big Block V8 .020in Fiber Intake Mani Gasket Set-1.754in x 2.505in Rec. Port

When you're rebuilding the top end of your Chevy Mark-IV or GM Gen-V/VI Big Block V8, getting a good seal on the intake manifold is critical. This gasket set from Cometic is designed to do just that, ensuring no vacuum leaks and that your engine runs smoothly.

These gaskets use Cometic's AFM material, which is a blend of synthetic rubber bonded to an aluminum core. It's built to handle temperatures over 250°F and maintains its seal even under consistent torque. The material has a high recovery rate, meaning it compresses well to fill any imperfections on the manifold or head surfaces, and it doesn't require any sealant or re-torquing after installation, which can save you time and hassle during your build. This particular set is .020 inches thick and features rectangular ports measuring 1.754 inches by 2.505 inches, designed to match specific port sizes on these big block engines.

This gasket set fits a wide range of Chevrolet and GMC vehicles from the mid-60s through the early 90s, including popular models like the C10 Pickup, Impala, and Camaro. It's a well-built option for anyone looking for a reliable intake manifold seal.