wat is the stock size rims for an 84 z28 ? i saw these nice rims for a good price they are 15x7 will they fit?

 

15x7 would be an accepitble size, kinda narrow as stockers are 8" wide(on the later cars at least). But as far as fitment goes you need to be concerned with offset, backspacing, and lug pattern. Your lugs are 5X4.75, and I'm not real familiar with the early cars but IIRC the Offset is either 0 all the way around, or 0 in the front and +16 for the back. Hopefully one of the whell gurus will drop by and straighten me out.