Intake port flaw
 

https://cimg7.ibsrv.net/gimg/www.mia...37a7725229.jpg
Here is a flaw in a head I was porting.

interesting, what engine is that from?

I've just removed the inlet manifold from my '91 B6 / 1.6 and noticed bad casting in the inlet port (number 3 cylinder) but the engine ran fine as well as pulling well

Attachment 227191
its partly blocked by a thin section of metal, guessing from mold section joins?

Attachment 227192
I'm amazed if passed qc though:bang:

Rich.