Welding headers

slowtwitch · Post by **slowtwitch** » Fri Jul 15, 2005 5:49 am

Hi Everyone,

I'm very interested in trying my hand at making up a set of headers for my 67 bug, with a T4 engine. I have read that Tig is the way to go, but, would Mig be acceptable???

thanks

pete

Coils · Post by **Coils** » Fri Jul 15, 2005 10:52 pm

aircooledtechguy · Post by **aircooledtechguy** » Mon Jul 18, 2005 6:58 am

Mig will work fine, but be aware that you will likely end up with pieces of wire sticking into the exhaust flow. I would recommend tacking it together with Mig and then having someone else Tig it together. Also the use of back-up gas is really important. This is different then shielding gas at the torch tip. Back-up gas is used inside the pipe as you are welding from the outside. This will give nice smooth welds front and back. Without back-up gas, Tig welds on pipes are large and rough on the inside where this matters the most. Good Luck!!