14x8 on Stock?

To the o.p: without knowing the backspace, I can only give a wildass guess. No. Especially if they are old 5 on 4 small pattern, cause they were almost always "deep dish". Which means they only fit on full round wheelwell openings.
For NoCar340, the old autodrags came in only two backspace on 15x8 1/2s, 3 5/16 and 4 7/8. I have a pair of the 4 7/8, and i have to use .300-.350 spacers to get a 10.5 slick off the spring. So, i don't think yours were a custom order, just the shallow dish version.