Hy DThela, cranking the engine may not result in oil coming up that far, I would run the engine to be sure. I checked my Motors manual, and I found the following note about rocker shaft installation " Use special bolt at position (1) (fig. 7) to assure correct position of shaft (6). NOTE: Check length of special bolt, if 2 7/8 inch bolt is used install two flat washers under bolt. If 2 3/4" inch bolt is used install one flat washer under bolt." Position one is indicated in fig.7 as the rear most rocker assembly bolt, number six is just indicating the rocker shaft, hope that helps.