360 Stroker Combo Build Questions

The only problem with the crate engines that are Magnum head based could be (IDK 4 sure) are the blocks not being able to feed "LA" style cylinder heads with oil.

Is this the case with the blocks? If so, cylinder head selection is limited. I feel the Edelbrock head (Magnum style) will take care of most street and street strip duty engines.

I like ou812's suggestions.