Thinking of going BB...

Stroker is right,the deal killer is machine time. Much cheaper to get parts that fit without taking them to the shop.

Im a fan of sleeving. Lots of diesel engines are done this way from stock. I plan on using sleeves in my 400 block if needed. Just seems like way less hassle than running around ,finding another block,getting it cleaned and checked..and then finding out it's no good? You r $ ahead just sleeving the block you have. Sleeves aint that much to get installed,really not much more than boring.