Engine identification

The partial vin is, stamped not cast, on the right oil pan rail about midway on a machined pad about 2-3" by 1/2".
The engine assembly info is, stamped not cast, on the left, front of the block just under the head mounting on a machined pad

5-29-69 it appears which seems likely used in an late 69 or early 70 vehicle. If the VIN starts with 9 or 0 will determine that.