I wouldn't call the infield "tight". Strange maybe. You don't get a lot of heat into the right side of the tire. A GSXR1000 will beat up a tire, but they do that everywhere too. Yeah, it will do it more at Daytona.
Honestly, Daytona will put a load on an engine, sure. Build a stellar modded motor for Daytona? Well, a lot of those break. If anything, I'd just lean on a fresh motor, rings and all. Sure, if you have more power, one might be able to go faster, but how much time do you have to learn the track and get your bike set up? A really fast bike that doesn't handle is scary and a decent risk to give you fits or toss you off. If you can have a fast bike that handles at Daytona? Well, that's good. Again, it has to stay together too.