I remember reading somewhere, at some point in time, that a 350 Diesel engine has a much more stout bottom end than a standard 350 SBC 4-bolt main gasser. I also remember seeing that the jugs can be bored out almost .250" and via some sort of voodoo, better than 400 CID can be obtained (425 cubes???). Using standard 350 gasser heads, intake manifold and carburetor, the bottom end is strong enough to handle Nitro / alky / and/or pretty much any blower that's made. Has anyone ever heard of this kind of conversion???