High quality reproduction parts made in the US. Excellent header like flow and the ruggedness of cast iron. Correct for 1967 but also fits 1964,1965,1966. Has 2.5" outlet diameter - we also have 2" available under another listing.Casting Numbers LH - 9777646 RH - 9777642. The item "Pontiac Ram Air Exhaust Manifold Set D Port HO 2.5 Out P/N 9777646 / 9777642" is in sale since Thursday, February 7, 2013. This item is in the category "eBay Motors\Parts & Accessories\Vintage Car & Truck Parts\Accessories". The seller is "ammuscle" and is located in Arcanum, Ohio. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Viet nam.