According to the specs in the catalog, this belt is a 6-rib serpentine belt 80-1/2" long. And all ZR-1's use the same belt 1990-1995.
But feel free to verify yourself. It wasn't easy to find that info.
According to the sticky I found....
https://www.corvetteforum.com/forums...post1582076999
They used a "too tight" belt that was 79.8" long. So this belt should be perfect at 80.5"