On 66 and 67 Hemi blocks, with the factory half-inch pickup tube, the 4.15 crank with 2.375 rod journals will clear with a bunch of grinding on the pickup tube boss. I'm not sure if this information applies to your situation or not, but I would think so.

[img]http://i.imgur.com/boeexFms.jpg[/img]
31 Plymouth Coupe, 392 Hemi, T56 magnum
RS23J71
RS27J77
RP23J71
RO23J71
WM21J8A
I don't regret the things I've done. I only regret the things I didn't do.
"Wise men talk because they have something to say; fools because they have to say something. ~ Plato"