Those V engines used 2 cams. You need to tell which one you need. (I don't have one, but I have worked on one of those engines.)
Also you need to tell if your engine is L head or OHV (overhead valve), I am pretty sure the timing marks or the keyways in the shafts will be different.
The L-heads used the same block as the ZB and the OHV engines used the same block (Or about the same block) as the 445.