swapping header gaskets, any tips

Are the headers EQ length or unequal.

if unequal, get ready for a royal PITA. If equal, it should be relatively easy.

Either way, the first and last bolts don't need to be removed, just loosened. There are slots in the header gaskets so they will just pull straight up.

IDK what you will need to get in there, but you will need deep sockets 1/4 and 3/8, short sockets 1/4 & 3/8, u-joints for 1/4 and 3/8, both ratchets, possibly a 1/4 and 3/8 breaker bar if it's really tight, and stubby & standard length ratcheting wrenches.

Also, you will need 1, 2, 4 extensions for both 1/4 and 3/8. With the 1,2,4, you can create any length up to 7, and that will be your greatest friend. A lot of times, you can get a socket on it, but the ratchet can't turn with the extensions you have on, and the varying size will allow you get the perfect length.

That should do it. If you cant do it with those, give up and jb weld the headers on; as that will stop the leak.
Scott