Ragtop, I'm confused about what you're after. Put a 460 crank in your 4-bolt CJ block and you've got a 4-bolt 460 (after changing pistons of course).
I've also read that there was a 4-bolt 460 truck motor (D8 casting I think) but, after 3 years of watching on Ebay, I've never seen one go by. A bunch of DOVE-A CJ blocks and a ton of 2-bolt 460 blocks, but no D8s. If they exist, where are they?