Stupid question I know, why would you want to bend headers right? Heres why I had a decent set of headers on my 69 mustang that had a 302 in it. The 302 blew and we swapped the headers from the 302 to the 351 with one problem. The drivers side header needs to be bent down MAYBE 1/4 of a inch, maybe not even that for the pipe to mate up with the flange. Whats a good way to do this?

 

I did something similar but I took it to a muffler shop. They cut the header had to add about 1/2 inch of pipe angel it down and then reweld it all up.

 

^that would probably work, although I dont know I might be able to get that much out of them... This thread really got buried quick.