Now you can get legendary Edelbrock intake manifold performance designed specifically for demanding marine applications. These marine intake manifolds feature a brass lined front water crossover and two brass flange inserts to cover the rear water openings in the cylinder heads. The brass lined crossover and inserts protect the aluminum from salt water corrosion. . It delivers maximum power and a broad torque curve for high-performance marine applications. Carb pad will accept square-bore carbs without adapters. Recommended intake gasket: Edelbrock #7201.