What do you have to loose? If they don't work buy new ones. If they only work for a short time buy new ones. I don't think they will come flying apart at the first hit by any means. I see a lot of guys who run VERY old slicks. Just make the first burnout a good one and let er rip..

The ONE thing I would do befoe you run them is to check the rollout to make sure the tires are even or close in size before trying to run them.