Cylinder Head Question

I notice that the all the cylinder head in the game are crossflow head. I wonder if there will Non crossflow head? For example all nissan’s l series engine, old Mini’s, and Ford Slant 6 has non crossflow head. I find that non crossflow head can help reduce the amount of emission from carbureted engines and also save cost.

I do not believe tornado heads will be added.

This would be a nice addition, as it would save space on tight engine compartments with inline engines; but I doubt they will implement it, as the benefit would probably not be enough to offset the required work. But maybe a modder could do it in the future?