Cometic Chevy Small Block 4.165 inch Bore .089 inch MLS-5 Head Gasket (w/All Steam Holes)

If you're rebuilding the top end of your Chevrolet Gen-1 Small Block V8, getting the head gaskets right is crucial for sealing combustion pressure and coolant. This Multi-Layer Steel (MLS) head gasket from Cometic is built to handle the demands of higher output engines, offering a robust seal without needing additional sealants.

Cometic uses multiple layers of stainless steel for strength and corrosion resistance, with embossed outer layers coated in Viton, a heat-resistant rubber material that can handle tough sealing environments. The compressed thickness is .089 inches, and this particular gasket includes all steam holes, which helps manage heat transfer between the cylinder head and block. These MLS gaskets work well with both aluminum and cast iron blocks, and aluminum heads, resisting the shearing forces that can occur between dissimilar metals.

This gasket is designed for a 4.165 inch bore and fits a wide range of Chevrolet and GMC trucks, cars, and performance models from the early 1980s. Make sure to check the fitment details to confirm it's the right choice for your specific application.