D0AE-L was used in the Boss 351 w/ 4bolt mains as well as garden variety 2V and 4V engines. As Geoff, noted, it's very unlikely to be more than a 2 bolt. No way to tell without pulling the pan or using a borescope through the drain plug.
The partial VIN stamp is on the block below the rear of the cylinder head. With that casting date, it should have it on the driver's side. I have a couple earlier blocks stamped on the passenger side.