Looking for some header flanges, but for the 5.7 Vortec heads. I found stainless works has them in stainless, but I'm looking for something a bit cheaper in nonstainless for mock up/testing.

 

Vibrant Performance makes some. You are talking about an LS1 correct?

 

No, Vortec heads are differen't from LSx heads. Thanks, though. They might make some.

 

check with your GM dealer. I got am LS1 through the performance book, resonable. 3/8 steel

 

azzhauler, im not sure but dont the vortec heads take the standard SBC exhaust manifold, if so you shouldnt have a problem finding header flanges...

what are you doing, making custom headers, a custom fornt mount turbo system, or....

 

They do look like a similar layout to standard sbc headers, but I haven't been able to find a confirmation that sbc flanges work. Most of the sbc flanges I have seen have round ports, while I believe the vortecs are D shaped. I *think* the vortec flanges are the same as lt1 flanges. If the bolt holes and port placement is the same, round port flanges would work fine for initial building. This is for a front twin turbo. The only available stuff is mad expensive.