Depends on what you are looking for when it is finished. Is this on a show car or a driver?

On my 68 B'cuda, the original 22" radiator had no shroud with its 318. When I went to a 360, the old rad was running hot. I found that a /6 radiator shroud from a mid-70's valiant can be mounted upside down and works perfect on a v8 application. Some minor clearancing and re-drilling the mounting holes. Not show, but works for my driver.