Cometic Chevy Small Block 4.200 inch Bore .086 inch MLS-5 Head Gasket (w/All Steam Holes)

If you're working on a Chevrolet Gen-1 Small Block V8 engine, this Cometic MLS-5 head gasket is built to handle the demands of higher output applications. It's designed for a 4.200 inch bore with a compressed thickness of 0.086 inches and includes all steam holes, which is important for proper coolant flow and temperature regulation in these engines.

This gasket is constructed from multiple layers of stainless steel, giving it increased strength and the ability to rebound, which helps resist corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit and works well with different block and head materials like aluminum to cast iron. Because it's a Multi-Layer Steel (MLS) gasket, it doesn't require any sealants, making installation more straightforward.

This gasket fits a wide range of vehicles from the late 70s and 80s, including popular models like the Chevrolet C10, Camaro, and GMC C1500. It's a solid option for rebuilding or upgrading your small block Chevy's top end.