NoS, on older lifters there is a wear pattern that concaves at the center, the cam will wear in the opposite fashion, this wear is usually very specific to the cam and lifter, so swapping one used cam to another used lifter will usually cause problems. Remember this is especially so of high mileage vehicles. I strongly recommend that you buy new. Now that having been said, you can use new lifters on an old cam without a problem.
The most negative thing that could happen is that with the different wear pattern there will be places on the cam and lifters were all of the spring pressure will be on the area of the cam that does not match, this will cause a hot spot on the cam and then, well you get the idea.
Oh and just to be OCD, PC and Technically correct they are Cam Followers, I had this forcefully pointed out to me by a Youg'in that was still wet behind ears, "of course they are cam followers i though, rolling my eyes as I reminisced about working for Fiat in 1975, with DOHC engines when this boy was still a gleam in his fathers eye". Anyway, "lifters" fits and we all know what you are talking about.