Cometic Chevrolet Gen-3 Inline 6 .030in MLS Cylinder Head Gasket - 4.125in Bore

Cometic Gasket is well-known for making dependable sealing solutions, and this Multi-Layer Steel (MLS) head gasket is a prime example. If you're working on a Chevrolet Gen-3 Inline 6 engine and need a replacement head gasket, this one is built to handle the demands of higher output. It's specifically sized for a 4.125-inch bore and is .030 inches thick when compressed, making it a precise fit for certain engine builds.

This gasket uses multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit, ensuring a solid seal even in harsh conditions. Because it's an MLS design, it doesn't require any additional sealants and works well with both aluminum and cast iron blocks, helping to manage the stresses between different metals. The center layer is stainless steel and can be varied in thickness to meet specific engine requirements.

This gasket fits a wide range of vehicles, including many Buick, Checker, and Chevrolet models from the 1960s and 70s, such as the Chevrolet C10 Pickup, Checker Marathon, and Buick Skylark. Always double-check the fitment guide to confirm it's the right part for your specific application.