<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir="ltr" data-setdir="false">Rick, </div><div dir="ltr" data-setdir="false">I just welded my forward port frame into my new diesel sub and it warped .008 inches. I decided the easiest way to fix this was to cut out the head 4 inches bigger that the port frame (20 inches) I took the assembly back to my lathe and machined it true. Now I will simply weld the section back into the head and its all done. A days work. I am mentioning this as an option for you to avoid annealing your port. </div><div dir="ltr" data-setdir="false">Hank</div></div></body></html>