Up for sale is .060 thick Premium High Performance intake manifold gaskets for a small block Chevrolet engine. As you can see in the pictures there is no cut out for the heat riser crossover. These high quality American made gaskets and cut from from Interface MP-2N material.  We ship USPS Mail for quick delivery and easy tracking.  Check out my other items! 283, 307, 327, 350, 400 SBC