yeah there is one here that runs at the track, did it up FI too and i saw here on CL a complete 600hp clevleand for 5k not a bad price, probably have it shipped to you for 150 bucks... 408 Cleveland Stroker Motor
I thought the C used the big-block trans bolt pattern...? I bet there are other things like oil pan shape and accessory drive that you'd have to figure out. I bet someone out there makes swap parts for this, though.
Anyway, I have actually seen it done before, too. Just not sure what goes into it. Cool thing is, factory stock 4V heads on a stock stroke 351C will make 450hp with the right intake and cam, but good luck finding the 4V Cleveland stuff.