A great exhaust system starts at the begining - the exhaust manifold flange. One of Dynatech®s biggest advantages is the wide selection of port machined flanges. All the header flanges are CNC laser machined for unparalleled quality and fit. Small Block Chevy Flanges are sold individually Use with Fiber Gaskets (part number 3117940000)
Build or modify your own headers with these flange plates. These exhaust manifold flanges have oval ports. This is a pair of header flanges only no bolts and no gaskets included Flange is 5/16" thick. Header Flange PlateChart Application