Ultimate Headers Cast Header Flanges

Ultimate Headers offers their cast header flanges for a variety of popular high performance engines, meeting your need for custom-fabricated headers. Special attention is paid to creating not only a unique appearance to each flange application, but also to their physical properties. These cast stainless steel cylinder head flanges are lighter than flat-stock mild steel or stainless flanges, yet they are exceptionally strong to provide excellent clamping forces at the cylinder head. Features include: * Patented design (U.S. Patent US D700, 554 S) * Aerospace-derived engineering techniques and metallurgical processes * 316L grade stainless steel delivers a very strong casting with exceptional heat and corrosion resistance * Flange rib design for excellent strength and reduced weight * A perfect match with Ultimate Headers stainless steel, tight radius header elbows * Runs cooler due to increased surface area, further reducing tendency to warp * Available finishes include vibratory-polished, satin, mirror-polished, and mill/cast finishes Show Less