What RPM Will a stroker Crank hold?

The aluminum rods are great parts. They'll work in anything. However, you have to build with them in mind. They do stretch at high rpm which is no big deal. They need to be handled carefully to avoid any nicks or marks on thier surface. They should be warmed up fully (if you're in a cold climate) Personally, in CT, I can't see them having issues even on the street over a few years. They and the bearings SHOULD be checked (involving disassembly and careful measurements) yearly IMO.