Is a 75 360 LA supposed to have a oil slinger?

So I'll add a little here. I bought a 360 crate motor from Mopar Performance about 16 years ago. It didn't have the special bolt with the hole in it for oiling. It also didn't have the 9/16 plugs in the block behind the plate. Look at some of the posts on this website and you'll see plenty of info about this. It's been said that it doesn't make a difference with oiling and wear. I've run it 15 years with and without the plugs. Certainly without the special bolt. (Also the bolt's been long discontinued anyway, not like you couldn't make one easy enough, but you have one). I've had no problems with wear or oil pressure. Read those other posts to get the other opinions. At this point I have to agree with them though. I do use a slinger. I run it hard, shifting at 6600 and going through the traps at 7000. I would replace the chain and gears. It's cheap insurance.