Do you have a Vellay gasket to suit the Ecotec V6 3.8L engine?

Yes, we do. It’s available in both Steel and Aluminium, as shown below.

STEEL INTAKE MANIFOLD GASKET KIT:

https://www.maceengineering.com.au/epages/mace.sf/en_AU/?ObjectID=1469584

ALUMINIUM INTAKE MANIFOLD GASKET KIT:

https://www.maceengineering.com.au/epages/mace.sf/en_AU/?ObjectID=92080805