Engine 2.2 out of 626 and 929 identical?

Hello! Question to the experts: Are the engines from 626 GD and 929 HC (2.2 liters) identical? Did they find different cylinder capacity (2169 and 2184 ccm) in both vehicles. Do the components fit one another? Cylinder head, manifold or suction bridge? Where are the differences except longitudinal, transverse installation? Thanks for information.