I've just had a look through some pictures I took of my engine while I was building it and all four rod journals are drilled all the way through. It's a 440 Source 4.25" crank and I bought it in August 2007.

1970 Road Runner 505 cid MCH CNC ported Stealth heads MP 528 camshaft 4 speed GV overdrive 11.98 @ 117 on street treads