OK, I picked up a complete GM exhaust manifold for a GSI today and it looks like its been on something very low and the end flange has been torn right off, otherwise its complete and in good condition.
Even the weld that held the flange is still there so all I need to do is make a new flange and weld it on.
Only trouble is I dont have a pattern to work from.
Anyone got one they can photo the flange end of for me please?
I do have a cat removal pipe for a GSI here and the end on that will give me the hole centers for the flange, it has a black fibre cone ring on it so I guess that the manifold flange should have been tapered internally to suit this?