# Welding Questions **URL:** \ **Category:** Shift518 Automotive\ **Created:** [March 25, 2010, 5:05am UTC](https://forums.speedlife.net/t/welding-questions/251104 "2010-03-25T05:05:06Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![ninety1two40](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ninety1two40/32/6332_2.png) [@ninety1two40](https://forums.speedlife.net/u/ninety1two40)\ **Post date:** [March 25, 2010, 5:05am UTC](https://forums.speedlife.net/t/welding-questions/251104/1 "2010-03-25T05:05:06Z")
I have to weld a couple things to my stock cast exhaust manifold. 1. 1/2" thick T3 flange 2. Wastegate flange My concern is the turbo flange. It’s going to be welded to my current T3 flange to act like a spacer. Or, instead of welding it on should I use extended studs and an extra gasket? If I do weld it, what is the best way to keep it from warping? The wastegate is a different story, I have to drill a hole in the top of the manifold and weld in a pipe with flange. I might outsource this to Hank or something. ---
**Author:** ![Boxersix](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/boxersix/32/6327_2.png) [@Boxersix](https://forums.speedlife.net/u/Boxersix)\ **Post date:** [March 25, 2010, 10:34am UTC](https://forums.speedlife.net/t/welding-questions/251104/2 "2010-03-25T10:34:47Z")
You can always bring it to me ya know 😉 Weld the flange on AND use extended studs. Just no double gasket. Too much movement and it’ll likely blow out. Is this manifold cast iron or tubular steel? ---
**Author:** ![ninety1two40](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ninety1two40/32/6332_2.png) [@ninety1two40](https://forums.speedlife.net/u/ninety1two40)\ **Post date:** [March 25, 2010, 11:09am UTC](https://forums.speedlife.net/t/welding-questions/251104/3 "2010-03-25T11:09:26Z")
It’s a cast manifold. I’ve been trying to find extended studs, preferably ARP. I believe it’s a M10x1.25 about 60-70mm long.