The front are 215 50 14 (I believe I'd have to double check though) and the rears are 245 60 (or 65) 15. The tires are physically 2.5-3" taller than whatever is on my brother's Z28.
Their is some insane offset on the tires, the rear actually stick out about an inch out of the fender. They did rub badly, I can see wear marks where the lip of the fender was interfering with the tire.
The picture doesn't do justice to the rear tires, they are way bigger than they look. They are 27" tall in the rear lol... owner was a tool.
Think I want these:
They are 17x9's front and rear. Then I want 245/45/17's up front and 275/40/17's in the rear.