To build your own headers, prebent sections of primary tubing, headmounting flanges, and collectors comprise the necessary "bill of materials," while a 7/16-inch wrench, aviation tin snips, a large tubing cutter, rulers, hammers, lots of clamps, and Vise Grips will. To build your own headers, prebent sections of primary tubing, headmounting flanges, and collectors comprise the necessary "bill of materials," while a 7/16-inch wrench, aviation tin snips, a large tubing cutter, rulers, hammers, lots of clamps, and Vise Grips will. Or can the primaries on the backside of the flange by welded flush and still get a good seal with the gasket and the head? I am guessing that the flattened bead bites into the gasket and helps with a good seal but I thought I should check with the HAMB experts. Keep in mind that production headers. However, for joining the tubes to the head-mounting flange, a MIG, TIG, or electric-arc rig is needed. For the ultimate in appearance or with turbocharged engines, many header builders prefer stainless-steel tubing. Easy button would be to get a couple of eBay flanges and cut them up, may be a decent idea as well as that would allow for less strain on the flanges as the head expands and contracts. No confusion, no part hunting, just results. Repair-first mindset, replace the connector, fix faster, skip full harness replacements. This car will feature an all aluminum 351 W putting out 750 HP and backed by a 4 speed 480LE GM automatic transmission. What is important about it? There are several things to consider when looking at the header flange: Exhaust port size, shape, and location.
