400 stroker or 440

I went through this to.I went with the 440. The webing on the outside of the block means nothing.the extra webing inside means nothing for a street engine.Call to 440 source and they will tell you everything about the blocks.Hear is the site for everything you want to know about B and RB blocks http://www.440source.com/blockinfo.htm .Plus what I did when I started to building my engine was I went to my local tracks and asked whe racers what they wrer using and why.I found alot of myths out there. Mark