Up for action is a pair of Small Block Chevy Header Flanges Stahl Pattern with heavy duty 16 gauge stub welded to them. These flanges are cut out of high strength 3/8" A572 material rather than cheap A36 mild steel. Each flange has 2 chevy bowtie cut into them, a perfect compliment to any chevy enthusiasts engine compartment. All flanges are fitted with quality 2 1/8" tubing then welded all the way around the circumference of the primary tube.All flanges are laser cut and verified on a CMM (coordinate measuring machine) to verify accuracy. Don't settle for cheap plasma cut flanges that are going to give you fits during installation when you can get quality flanges at the same price. I stand behind my work and if you aren't satisfied with your part I will give you a full refund. Please check my other auctions for different sizes!