Cometic GM/Mercury Marine 525/625 502 Gen VI Big Block V8 .030in MLS Exhaust Manifold Gasket Set

If you're working on a GM or Mercury Marine 525/625 502 Gen VI Big Block V8 engine and need to replace the exhaust manifold gaskets, this set from Cometic is a solid choice. These gaskets are crucial for sealing the exhaust manifold to the cylinder head, preventing leaks that can affect performance and sound.

Cometic builds these gaskets using multiple layers of stainless steel, which gives them extra strength and helps them resist corrosion. They're also coated on both sides with Viton, a heat-resistant rubber material that can handle tough sealing jobs and high temperatures, up to 482°F. This construction helps ensure a reliable seal even under demanding conditions.

This set is specifically sized at .030 inch undersize, which is important for proper fitment on engines that have been machined or require a specific gasket thickness.