Time for a big-block. I've been kicking the idea around for months, weighing the pros and cons of stroking my 360 vs screwing together a similarly hp-rated stock stroke bb. The big-block finally won. What I'm wondering is if anybody here has actually done it. Since these things (Cordobas) came with 400s we know a bb will fit physically but, is the K-member the same sb to bb? I can't imagine the trans tunnel needing modification, even though I'll be changing trannys, too. Obviously the mounts will need to be replaced, but what about the radiator? Is the sb unit gonna be sufficient? This won't be a huge hp application, somewhere between 375 and 400 horse, stock-ish TNT specs. Just looking for any advice available from someone whose DONE it and made it work. I'm not married to the idea of a 440, I just happen to be most familiar with RBs as opposed to the B big-blocks. Why a big-block? One word;TORQUE. Thanks for any help, advice, tips, and/or shortcuts. Jonny Y.