FAST Facts about Fab Shop Headers Fab Shop Header Coatings The manifold shown is designed for maximum flow and maximum durability. Created from heavy-wall stainless steel and attatched to a CNC'd piece of 3/4" billet steel flange which incorporates brass o-rings to pinch the gasket to the head. Tubing used is typically twice as large or larger than stock. Ceramic-coated black. The unit shown fits 400 Series International Harvester. Other designs are available as custom orders. |