Proflow Header Extractor Gasket, For Ford V8 302 - 351C 2V, Stainless with Graphite Overlay, 1.948" X 1.489" Port, Pair - PFEEHPFD2-GPart Number: PFEEHPFD2 G Proflow offers a variety of header flange sizes and shapes to mate your heads and headers. These 3 8 thick flanges are precision cut to meet your ports, reduce warping, and prevent leaks. Proflow header flanges keep your tubes in place without the big price tag. Proflow graphite laminated stainless steel gaskets offer superior sealing capabilities, are non stick, comfortable with high temp and pretty much the best choice to