Crower part info?

Just picked up a motor complete, it has not been run in 6 years and tore it down today and its a d1 block and i got the pan off and it has the 4 bolt kit on 2,3, and 4! Just starting here next I see the crower rods and they carry a Z stamped on them and they are a 6.8 next the crank is a crower also and it is stamped T78 3950 (i think this is the stroke from some quick measurements) and CA 24564 and then scribed on the counterwieght is 66CS. Can anyone give me a heads up on this crank? I did email crower but form past experiance i know they will get back to me IF THEY FEEL LIKE IT! Thanks Greg

Then it might be good to call them also.

The squeaky wheel gets the grease.

Dave