426 stroker, is it reliable?

If it was me, and I'm looking for a street engine, I can think of a few more trinkets that I could by for the difference in price between custom pistons vs. shelf part numbers, and crank blueprinting vs. a new crank. I'd leave it at 360", and upgrade to a hydraulic roller, or spend the money on a beter set of heads. It's easy to get 400+hp from a 360 with a decent set of heads. Really easy.