Just curious to know what some of your experiences have been with 427's. I'm really not planning to build one any time soon, but I wouldn't totally rule it out. I'm curious to know how common steel cranks were in them, how much power said crank would take, what kind of RPM potential do they have, what cylinder head would be best for a relatively high RPM application, etc.... The only way I would build one is to put a 300 to 320 or so CC head on one, spray it, and twist the hell out of it. Has anyone tired this, and what was the outcome? I appreciate all input on this inquiry. Thanks!