This is 460cid engine, l think C6 transmission and 9-inch rear.

None that l know & figure that u can get similar results with larger exhaust & flowmasters or similar. The 460 was certainly not designed for ''high performance'' in the big Lincoln chassis & therefore was never a market for headers. When those cars were new, gas was cheap, & the folks that bought those cars did not want the noise that headers would give. l think that Hooker or one of the other major header outfits sell univesal type header kits for certain engines that come with all sorts of elbows & pipek, etc. so that u can essentially create ur own. You weld them together after cutting & fitting. An easier solution might be to modify some headers for a 460 from a truck or other vehicle. While the truck ones would probably hit frame & other items on the Lincoln, they could probably be cut & bend & made to fit by a competent ''pipe bender'' at a well established muffler & exhaust shop. Still doubt that they would do u a lot of good & add noise to what is supposed to be a ''quiet ride''. :-)