Stainless Works SBF Wide Rectangular Port Header Adapter 304SS Exhaust Flanges 1-7/8in-2in Primaries

These Stainless Works header adapter flanges are made from heavy-duty 3/8" thick carbon steel, chosen for its strong resistance to warping even under high heat. They're specifically designed for Small Block Ford (SBF) heads with a 2" horizontal centerline bolt pattern, and they come as a pair. The machine work is included, and they feature eight countersunk holes for 3/8" flat head bolts to attach to the head. You'll also find eight 3/8"-16 tapped holes, ready to accept SBF header flanges that are designed for larger port sizes, accommodating 1-7/8" or 2" diameter primaries.

These adapters are a smart way to connect larger diameter header primaries to your SBF engine. They are intended to be used with 3/8" thick Small Block Ford header flanges that have a 2-3/4" diagonal header bolt pattern. Stainless Works recommends their HFSBFTFHP188 or HFSBFTFHP200 header flanges, but other compatible 3/8" thick flanges will also work. Keep in mind that the header flanges themselves are not included with this adapter set.