Hi guys. Up for sale are 1/4” thick Buick 350 header flanges. The mild steel is a bit pitted but would clean up easily. I have one set of stainless flanges and 10 sets of mild steel. The stainless flanges are nice. $130 shipped for the stainless $85 shipped for the mild steel stainless ones below:
As you can see there are slight blemishes on the mild steel flanges but nothing that will cause an issue.
Yeah these are used to build custom headers especially turbo setups. Otherwise people just buy headers.