I got offered a good price and was just wondering if it was worth it for my zr1 wheels

 

It really depends on your offset and how much you are willing to "clearance" the wheel well area. I made a post in this forum about my 17x11 Fikse FM5s that I have 335-35-zr17 tires on.
Here is the link:

http://web.camaross.com/forums/showthread.php?t=352910

 

Are you sure you don't mean 335/35-17? A 335/40-17 would be 27.5" diameter, barely fit in the fender opening, jack the back end of the car up 1" and reduce your effective rear axle ratio by 7%. And Tire Rack doesn't list that size.

Try a "search". There was a guy with the screen name "kmook" who ran the 335/35-17's on a 4th Gen. I suspect others have as well.