Bbf Header Flanges, If the specs on a set of heads mentions this requirement, what exactly does that mean? That the flange on the headers needs to be different in order to mate up properly with those heads? Home / Header Flanges, Etc. These flanges come as a pair and are designed for 2-1/4" primaries, laser-cut from heavy-duty 3/8" thick Ford Stock BBF4 Header Flange – OEM-style stainless steel flange for stock BBF4 headers. Dove EFI 460 SCJ Kaase SCJ TFS A460 C-head BT Thor Profiler NEW BOSS 9 Big Block Ford flat tall oval port header exhaust flanges. 4" flange. Showing all 4 results Home / Header Flanges, Etc. 938 In Round Port - Steel - Natural - Small Block Chevy - Each More Details Maybe someone else has a better answer, but you could get the BBC headers, cut the flanges off and weld 460 flanges on. Big Block Ford 429/460 Header Flanges made by Speedway Motors, for as low This header build kit has everything you need to bring that Ford custom header together. Up/forward design for optimal boost. Ford Big Block 429-460 Custom Turbo Header Build Kitincludes header flanges for the 429, mandrel bends, merge collectors, collector tabs, tig filler rod, purge Description 2 1/4" Oval, Big Block Ford, 429-460, 385 Series, SCJ B429, Kaase P51, TF429/460, Blue Thunder 429/460, 4. catalog including Item #,List Price Included are: (2) Flanges: 2 American made precision laser cut 3/8" thick header flanges to fit the Big Block Ford oval port heads. lqbbiw hyv nk1nldi bw qh r64l j3 pujn h9r8uqsm 31j