I have a few of these left over so I will take advantage of this new forum to advertize them. The heat riser delete will eliminate the valve altogether while still retaining the geometry of the exhaust attachment point.The main body of the part is machined from round stock steel and the ears are flat bar construction and TIG welded on a fixture for good fitment. Price for the part is $60.00 shipped in the US and Puerto Rico,others will be actual shipping included.PM or post here with any questions.Thanks. Here's a few old valves from 350,430 and 455 Buicks and the delete on the lower right. These are detailed pictures of the part 350 manifold with delete and gasket 455 manifold with delete and gasket This is a gasket that I found to work for this application if the manifold surface is not nice and flat.The Gasket is not included with the purchase.