[Mike Taylor 3601]

As close as I can get is I did a 65 273 had same oil galley as any other small block mopar
It would have to have a completely different oil system to not oil lifters common sbm has galley on right side that cuts into lifter bores and has holes on bottom of galley that goes to each main.
I think the easiest and most accurate way to answer this question is to have comp tell customer if engine is assm. to put primer on it and see if oil comes into lifter bore @ rear then be sure each lifter bore has oil passage.
If engine is apart track oil galleys and see if oil has passage to get there.

Mike Taylor 3601