Ok guys, I did a search and I found nothing so here is my question.. As you all know my luck my rex is down.. I pulled the motor today to get to the root of the problem, or atleast find the root of my problem.. Well, as my luck goes

I can't get the cam gears off to pull the cams so I can pull the heads... I assume they are standard thread as the crank pulley was, but no luck.. Non on reverse thread either.. I tried an impact first, then a wrench on the hex in the cam and a pipe on an allen wrench, yea, I am no small boy and I couldn't budge it.. I don't want to apply heat, but unless I am missing something I don't see any other options.. Some help would be greatly accepted.. Thanks guys...