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Stainless Works Small Block Ford stock rectangular port header flanges are sold as a pair for 1-3/4" primaries with a 2" bolt pattern center-to-center, matching stock SBF rectangular ports. Laser-cut from 3/8" thick 304 stainless steel, they resist warping under high-heat conditions and deliver true mating surfaces for headers. These flanges are intended for reliable replacement or fabrication work on Small Block Ford heads.
Stainless Works SBF Stock Rectangular Shaped Port 304SS Exhaust Flanges 1-3/4in Primaries (2in BP)
