It depends on your definition of work... They'll physically fit (the blazer is wider than the donor), but you'll be drilling new holes for them. My blazer is a toy with plenty of holes in the floor from past random revious owner mods so it's not an issue for me. Those seats would be nice!
I've got NOS GM seats in the front of mine and a seat in the back that matches what I had in my old 96 Silverado.