Chevs of the 40s shows the alignment tool for 216/235 engines (37-53). Call them to see if it works with the earlier stovebolt engines (I doubt if it will, but please let us know). The dippers are the same from 1933 onwards but the orientation would depend on the oil pan (at least) being the same.

http://www.chevsofthe40s.com/shop/s...amp;dept=Car&searchtype=FT&Go=Go