318 LA roller block questions

The very first 318 ( 1970 dated) I pulled apart had oil though pushrods from the factory. I thought that's how they all came to begin with.
I hate that way my brain works... i see the worst case scenario of everything.. which makes me insanely overthink things.. So.. i could do pushrod+shaft knowing i have plenty of oil but i also figured it would just lead to something stupid i hadn't considered..