The Mr Gasket 7158 Exhaust Gasket is a high-quality, performance-enhancing car part designed specifically for BBC engines. Made from durable copper material, this square port gasket with dimensions of 1.9 x 1.85 inches is perfect for replacing worn-out or damaged exhaust gaskets. With its brand reputation for excellence and its focus on performance, this gasket ensures a secure seal and improved engine efficiency, making it a must-have component for any car enthusiast looking to enhance their vehicle's exhaust system.