Fan shroud on a 4.1?

[C10wip]

Has anyone installed a plastic fan shroud on a 1980 C10 4.1? I think the stock "shroud" is a little shelf above the radiator. One of the purposes of the shroud is to improve air flow through the radiator which the 6 cyl may not need, but it would be nice to have a bit more of a safety barrier as well. It also looks like the 5.0l eng has a plastic shroud and the same sized radiator so it may just mean that it needs a couple of brackets at the top. The shrouds themselves are pretty cheap. Any advice?

Thanks