Originally Posted by cboy
As usual, another ingenious tip from TM.
I'm not sure what the home-made header experts would say but when I built my Patriots I did all my welding on the inside of the flange (head side)...and thus no welding gap was required at the front. .
That's the way I do it with the exception of a small tack weld on each side on the outside. Not saying that the tack welds are necessary, just that I reasoned that if the pipe had some support on the outside it would be less likely to crack at the weld because of the two-point support. Just a thought.