Does '64 427 center oiler have side oiler features??

[Grubby]

Do the early center oiler 427s that were made before the side oilers came out, have the oil passage casting down the left side of the block? Or do they look like a 390?

Is there any difference between a marine 427 center oiler and an automotive 427 center oiler?

My guess is they have all of the side oiler features. I couldn't find the information on the web.

Thanks.
John