I guess I should ask, which 427?
427 FE based engine (then again you would need to sub-catagorize which 427; standard, side oiler, cammer, tunnel port, etc.)?
427 stroker based on a 351W?
427 stroker based on a 400M?
427 big block Chevy (old engine)?
427 GM LS7 (new engine)?
Lots of 427 options.
What were you thinking? (you can read the meaning of that last line in so many differnt ways)