400 stroker or 440

Which do you choose and why? Going into an A body. I have a 440 now that needs rebuilt. I have new pistons and rings for it gaskets, bearings intake and carbs. But everytime I see a 451 i feel like I just got to have one so what would you choose?

451 has better rod ratio & lighter reciprocating assy. I'd do a 470 stroker instead. Check out this link & also get Andy's new book. Lots of good stuff about stroker builds.

http://www.arengineering.com/articles/451.html