Ok after looking at the probe website here are the following specs. Confirmed the 3.4 stroke.
347 - 3.400 Stroke - 5.315 Rod - 1.175 C/H - .912 x 2.500 - 113 Gram Pin
Also this engine was run with a stock balancer. 50oz
If you need more pictures of anything just let me know and I can post them up for you.